P(A and B)
Hint:
Find P (Senior Boy)
P(B)
Classroom of Students
Boys Girls
Freshman 4
4 8
Sophomore 5 7 12
[?]
Junior 2 3 5
Senior 1
4 5
12 18
Please help :(

P(A And B)Hint:Find P (Senior Boy)P(B)Classroom Of StudentsBoys GirlsFreshman 44 8Sophomore 5 7 12[?]Junior

Answers

Answer 1

Answer:

[tex]\frac{1}{12}[/tex]

Step-by-step explanation:

Number of boys = 12

Number of girls = 18

Total number of students = 12 + 18 = 30

Probability refers to chances of occurrence of any event.

Probability = Number of favorable outcomes ÷ Total number of possible outcomes

To find P(Senior | Boy), use [tex]P(A|B)=\frac{P(A\,\,and\,\,B)}{P(B)}[/tex]

P(Senior and Boy) = [tex]\frac{1}{30}[/tex]

P(Boy) = [tex]\frac{12}{30}[/tex]

So,

P(Senior | Boy) = P(Senior and Boy) ÷ P(Boy) = [tex]\frac{\frac{1}{30} }{\frac{12}{30} } =\frac{1}{12}[/tex]

Answer 2

Answer:

1/12

Step-by-step explanation:


Related Questions

24 divided by 4 times d

Answers

Answer:

i think 6 not sure tho sorry if its worng

someone help me with number 8

Answers

Answer:

The answers are...:

The common ratio is -3

the sequence of the function is 2,-6, 18, -54, 162

and

the sequence of the function model is geometric

I hope this helps ^^"

Step-by-step explanation:

the common ratio is just from the -3 itself

the sequence model is just plugging n for every term so

a(1) would equal to 2, a(2)=-6 , a(3) would equal to -18, etc

and the geometric is bc it has the exponential that has (n-1), thus it is a geometric sequence

How do I solve this?

Answers

Answer:

Answer A represents this

x <= -3  ;  x > 9

Step-by-step explanation:

Isolate x on each of the inequalities:

4 x + 4 <= - 8

subtract 4 from both sides

4 x <= - 12

divide both sides by 4 to isolate x completely (notice 4 is positive, so there is NO flipping of the inequality symbol)

x <= -3

This inequality is represented by shading the left section of the number line starting at x = -3 (make sure you draw a SOLID dot to mae clear that the point x = -3 is also included in your drawing.

The other inequality:

11 x - 11 > 88

add 11 to both sides

11 x > 99

divide both sides by 11 to isolate x (notice again that 11 is a positive number, so the inequality doesn't change with the division)

x > 9

This inequality is represented by shadowing the right hand side of the number line starting at x = 9. Make sure you draw an EMPTY dot on the number 9 to indicate that x = 9 is NOT included.

11z > -33 help please

Answers

11z > -33

11z / 11 > 33 / 11

z > 3

Hope it helps!

answer asap please!!

Answers

Answer:

61.6 units

Step-by-step explanation:

C (-8,-10)

D (8,10)

E (-8,10)

find the distance between the following points

CD = 25.6

DE = 16

EC = 20

Add them all up

61.6 units

Which one is true pls answer

Answers

Answer:

C. All rectangles are quadrilaterals.

Step-by-step explanation:

Quadrilaterals are shapes that have 4 sides, so all rectangles are quadrilaterals, along with squares, rhombus' and other 4 sided shapes.

Bob bought 24 hockey tickets for 83$

Answers

Answer:

i think the answer is $3.45

Step-by-step explanation:

just had to divide the two numbers

The solution set in interval notation is ??

Answers

Answer:

Step-by-step explanation:

Fire Warden Armband
$7.50 each
$6.50 each
First Aid Armband
$7.00 each
$6.00 each
Which of the following items showed the greatest percentage discount in price for
buying in bulk?
Jackets
Trousers
Rucksacks
Belts
Fire Warden Caps
Submit
© Copyright IBM Corp. 2012, 2021

Answers

It is Fire warden caps.

A scientist wanted to measure the constant rate of the current in a particular section of the river. She released a tracker into the river. The tracker sent her back the following information:
After 3.5 seconds since the tracker was released into the river the tracker had traveled 5.5 meters.
After 10.9 seconds since the tracker was released into the river the tracker had traveled 16.5 meters.
What is the constant rate of the current?

Answers

Answer:

1.486m/s

Step-by-step explanation:

The rate of change is defined as the change in distance divided by the change in time

Rate = ∆distance/∆time

Distance = 16.5 and 5.5

Time = 10.9 and 3.5

When we put this into the formula above, we have:

Rate of change = 16.5 - 5.5 / 10.9 - 3.5

= 11/7.4

= 1.486m/s

The constant rate of change has been calculated to be equal to 1.486m/s

You can use the fact that the rate of the change of a value when some other independent value changes is the ratio of change in the dependent variable to the change in the independent variable.

The constant rate of the current is given by 1.4865 meters per second.

How to measure the rate of change of something as some other value changes?

Suppose that we have to measure the rate of change of y as x changes, then we have:

[tex]Rate = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

where we have

[tex]\rm when \: x=x_1, y = y_1\\when\: x = x_2, y= y_2[/tex]

Remember that, we divide by the change in independent variable so that we get some idea of how much the dependent quantity changes as we change the independent quantity by 1 unit.

(5 change per 3 unit can be rewritten as 5/3 change per 1 unit)

How to measure the constant rate of the current for the given situation?

The distance traveled by the tracker depends on the time passed.

Let the variable "t" tracks the amount of time passed and let the variable "d" tracks the distance traveled by the tracker, then we have:

[tex]\rm At \: t = t_1 = 3.5, d=d_1 = 5.5 \: m\\At \: t = t_2 = 10.9, d = d_2 = 16.5 \: m[/tex]

Thus, the constant rate of current is obtained by

[tex]Rate = \dfrac{d_2 - d_1}{t_2 - t_1} = \dfrac{16.5 - 5.5}{10.9 - 3.5} = \dfrac{11}{7.4} \\\\Rate \approx 1.4865 \: \text{meters per second}[/tex]


Thus,

The constant rate of the current is given by 1.4865 meters per second.

Learn more about rate of change here:

https://brainly.com/question/2460159

What is the answer to n/4 = -9

Answers

Answer: n=-36

Step-by-step explanation:

Answer:

-36

Step-by-step explanation:

n/4=-9

Can be rewritten as

n/4 x 4 = -9x4

simplify

n=-36

Can someone help me some of my answer are Incorect thank you

Answers

Answer:

just to help you i dont know the answers but you should hide the link because everyone can  find your location

Write a rule that represents the function.

Answers

A function rule describes how to convert an input value (x) into an output value (y) for a given function. An example of a function rule is f(x) = x^2

que pasa si un objeto imparable choca con uno inabobible​

Answers

English Answer: No object can resist an irresistible force. No force can move an immovable object. So if an immovable object meets an irresistible force it will move and not move.English:

Spanish Answer: Ningún objeto puede resistir una fuerza irresistible. Ninguna fuerza puede mover un objeto inamovible. Entonces, si un objeto inamovible se encuentra con una fuerza irresistible, se moverá y no se moverá.

Step-by-step explanation:

¿Qué pasaría si una fuerza imparable chocara contra un objeto inamovible? Las respuestas comunes a esta paradoja recurren a la lógica y a la semántica.

Lógica: Si existe una cosa tal como una fuerza imparable, entonces no puede existir un objeto inamovible y viceversa. Es lógicamente imposible la existencia de los objetos (una fuerza imparable y un objeto inamovible) en un mismo universo al mismo tiempo.

Semántica: Si existe una cosa tal como una fuerza imparable, entonces hablar de un objeto inamovible no tendría sentido en ese contexto y viceversa, con lo cual el asunto vendría a ser algo así como preguntar, por ejemplo, por un triángulo de cuatro lados.

After two six sided dice are rolled, what is the probability that the dice faces add up to either a 4 or 6?
A. 0.222
B. 0.167
C. 0.083
D. 0.139

Answers

Answer:

hope this helps you

option B

Step-by-step explanation:

ecf-zutd-cpt.

The probability that the dice faces add up to either 4 or 6 is 0.222.

What is Probability?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.

Here, After two six sided dice are rolled,

Total outcomes = 36

Probability of getting sum 4 = 3/36     {(1, 3), (2, 2), (3, 1)}

Probability of getting sum 6 = 5/36

Total Probability of getting sum either 4 or 6 = 3/ 36 + 5/36

                                                                          = 8/36

                                                                          = 2/9

                                                                          = 0.222

Thus, the probability that the dice faces add up to either 4 or 6 is 0.222.

Learn more about Probability from:

https://brainly.com/question/11234923

#SPJ2

5(y+25)=-13 i need help explaining

Answers

Answer:

y=-138/5=-27 3/5 = -27.6

Step-by-step explanation:

5(y+25)=−13

Divide both sides by 5.

y+25=-13/5

Subtract 25 from both sides.

y=-13/5−25

Convert 25 to fraction 125/5

y=-13/5-125/5

Since -13/5 and 125/5 have the same denominator, subtract them by subtracting their numerators.

y=-13 - 125/5

Subtract 125 from −13 to get −138.

y=-138/5

help math eeekkkkkkk

Answers

Answer:

Step-by-step explanation:

1: Calculate the volume of the block GIVEN:=5cm,width=4cm, length =3cm

Solution =​

Answers

Answer:

volume=length ×breadth/width ×height

=3cm×4cm×5cm

=60cu.cm

Given:
Length=3cm
Width=4cm
Height=5cm

Solution:
Volume=length*width*height
=3*4*5
=60cm^3

Write the fraction as a decimal and percent (two answers)
144/200 of the tickets

Answers

Answer:

Answers: 0.72 and 72%.

Step-by-step explanation:

144/200 and 72/100 and 36/50 and 18/25 are equivalent to 72%.

13° N What is the measurement of N? es​

Answers

Answer: ..The 13 N + 12,13 C elastic scatterings have been measured at laboratory energies of 16.3, 20. and 29.5 MeV.

Step-by-step explanation:

how do you express 90 inches in yards and inches.

Answers

2.5 yards ahbdjxnejs

Answer:

90 inch=2.5 yard

Step-by-step explanation:

divide the length value by 36

happy to help ya :)

A local hamburger shop sold a combined total of 718 hamburgers and cheeseburgers on Wednesday. There were 68 more cheeseburgers sold than hamburgers.
How many hamburgers were sold on Wednesday?

Answers

Answer:

i believe its 650 hamburgers

Kaliq and Maria ench improved their yards by planting grass sod and shrubs. They bought their supplied from the same store. Kali spent $119 on 14ft^2 of grass sod and 3 shrubs. Mana spent 398 on 7ft^2 of grass sod and 7 shrubs. Find the cost of one ft^2 of grass sod and the cost of one shrub​

Answers

Answer:

i dont get it

Step-by-step explanation:

1. Given: Angle 2 is 65 degrees.

(a) What is the angle measurement of Angle 4. Explain the angle relationship used and show your work.
(b) What is the angle measurement of Angle 7. Explain the angle relationship used and show your work.
(c) What is the angle measurement of Angle 3. Explain the angle relationship used and show your work.

Answers

Answer:

Part A. Angle 4 is 115         Part B. angle 7 is 65        Part C angle 3 is 65

Step-by-step explanation: Part A. Is a corresponding angle of 1 and 4         Part B. alternate exterior angle of 2      Part C. corresponding angle of 7

In a school,2/15 of the students are boys and the rest are girls .If the number of girls is 1950,Find 5he number of boys​

Answers

Answer:

300

Step-by-step explanation:

How do I slove this question? I really need to find the correct answer please do help.

And provide an educated example.​

Answers

Answer:

C,D,F

Step-by-step explanation:

Which numbers make a true statement when placed in the box?
11.436 > 0
Select each correct answer.
11.422
11.484
11.621
11.286
o
Please help

Answers

The 11.422 one I hope I get u the right one sorry if not

Jordan and Beth are mixing yellow and blue paint to make green paint.
They are both using the same shades of yellow and blue paint.
A green paint made with a higher proportion of blue produces a darker green
Jordan mixes the yellow and blue paint in the ratio of 5:2.
Beth mixes the yellow and blue paint in the ratio of 18:7.
Who has the darker green paint?

Answers

Answer:

Jordan

Step-by-step explanation:

Jordan 5:2 -> 10:4, 15:6   20:8  25:10  50:20  60:24  70:28

Beth  18:7->  36:14  54:21  72:28

When Both of them add 28 of BLUE paint, Jordan adds only 70 yellow paint, while Beth uses 72 yellow paint. This would make Jordan's green darker.

Answer:

HI RACHEL

Step-by-step explanation:

so you do 1 + 1 which equalls to -8

then you do 7 - 9 which qualls 67

LOOL

[tex]5x/x-4=20/x-4+3[/tex]

Answers

Answer:

x=4

Step-by-step explanation:

multiplying everything by x-4 we get

5x=20+3x-12

2x=8

x=4

if my answer helps please mark as brainliest.

Complete the square to: n2 + 4n - 8 = 0

Answers

Answer:

(n + 2)² = 12

Step-by-step explanation:

[tex] {n}^{2} + 4n - 8 = 0 \\ {n}^{2} + 4n = 8 \\ {n}^{2} + 4n + 4 = 8 + 4 \\ {(n + 2)}^{2} = 12[/tex]

Other Questions
Find the slope from the graph. What are three examples of protists?A.amoebaB.parameciumC.euglenaD.fungi PLEASE ANSWER ASAPPP!Joan Didions 1967 essay, Goodbye to All That, recounts the authors experiences as a young woman living in New York City. Didion describes how she loved New York at first, feeling it to be a place of such great possibility and wonder that it scarcely felt real to her. Later, however, Didion begins to feel unsettled and depressed in New York. She comes to believe that she can no longer manage the small tasks of everyday life.Write an analysis based on your close reading of the final section. In your analysis, be sure to include an analysis of the life choices Didion makes and the literary devices she uses to relate her experiences.https://genius.com/Joan-didion-goodbye-to-all-that-annotated To solve the system of linear equations 3 x + 5 y = 2 and 6 x + 10 y = 8 by using the linear combination method, Laura correctly multiplied the first equation by 2 to get Negative 6 x minus 10 y = negative 4 and then correctly added the equations Negative 6 x minus 10 y = negative 4 and 6 x + 10 y = 8 to get 0 = 4. How many solutions are there to the system of equations?0124 The desert climate or arid climate, is a climate which there is an excess of evaporation over precipitation. During the days, the temperatures are very high and dry. During nightfall, temperatures drop dramatically and it gets very cold. In three to four sentences, describe one plant and one animal that you would expect to find in the arid biome. Support your answer with the abiotic factors in the biome. * Explain the difference between nationalism and sectionalism 10. Johnny pushed a wheel borrow that was 50kg, if the net force on thewheel borrow is 15N east, what is the wheel borrows acceleration? Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the variance. Round answer to 4 decimal places. Answer: Jill paid $35 for a sweater. This was $5 less than twice what she paid for a pair of shorts. How much did Jill pay for the pair of shorts? What is the answer is going to be? 3(x+4/9)-1/2(x+ 1/3)=5/6PLEASE HELP This article is from the Centers for Disease Control and Prevention (CDC)s Ambulatory Care Use and Physician Visits. This source shows data about the percentage of adults and children who saw healthcare professionals in the past year.What makes this website a reliable source for your essay? Select all that apply.ITS A .GOV SITEIt is a .edu site.It is a .com site. ITS AN ORGANIZATION'S WEBSITEIt is a personal website. the Himalayas are the highest mountain in the world (positive). grammar question Hey if someone could please help me with this i waould be very greatful using binomial expansion evaluate (0.99)^6 importance of distillation column in industry Directions: Use the excerpt below when answering the question that follows."...we the people of Georgia, relying upon the protection and guidance of Almighty God, do ordain andestablish this Constitution."--Preambe, GA State ConstitutionWho does "we" refer to in the Preamble to the Georgia State Consititution?Property ownersAll GeorgiansAll menPoliticians Can you see the image Im not sure if you can please let me know chicas son simpticas.laslaellos Question 1Which of the following can convert nitrogen in the air into a form plants can use?AbacteriaBfungiCanimalsDprotists How much will it cost Tom if he used his cellphone for 850 minutes in one month?Tom's basic cell phone plan charges$79.99 for service plus $0.18 per minutebeyond the included 800 minutes in theplan. How much will it cost Tom if he used his cell phone for 850 minutes in one month?