Mathematics High School

The australain sheep dog is breed renowned for its intelligence and work ethic it is estimate that 45% of adult australian sheep dogs weigth 65pounds or more asample of 15 adult dogs is studied what is the probalilty that more than 12 of them weigh 65 lb

Answers

Answer 1

Answer:

The probability is 0.0011 to 4 d.p

Step-by-step explanation:

Let p = probability of the dog weighing more than 65 pounds or more = 45% = 45/100 = 0.45

q is weighing less than = 1-p = 1 - 0.45 = 0.55

So the probability of more than 12 weigh 65 lb

That means 13, 14 or 15 weigh more than 65 lb

We can use Bernoulli approximation of Binomial distribution to get this;

That would be ;

15 C 13 0.45^13 0.55^2 + 15 C 14 0.45^14 0.55 + 15 C 15 0.45^15 0.55^0

= 0.001107024147 Which is approximately 0.0011 to 4 decimal place

Related Questions

-4y - 20 +19= -y + 17
2. Solve for y

i posted the same question but they didn’t tell me how they got it so could someone show me how they got the answer pleaseee

Answers

Answer:

y= -6

Step-by-step explanation:

-4y - 20 + 19 = -y + 17 *add y on the right to get rid of -y

+y +y then add it to -4y

-3y - 20 + 19 = 17 *add 20 to the left to get rid of -20

+20 +20 then add it to 17

-3y + 19 = 37 *subtract 19 from the left to get rid of 19

-19 -19 then subtrcat 19 from 37 as well

-3y = 18 *now we want to divide both sides by -3 to

-3 -3 get y by it's self

y = -6 *no we're left with y = -6 :D

- im sorry if this doesn't make sense x(

What are similar triangles?

Answers

Answer:

two triangles that are similar, that have equal angles

Answer:

the triangle which has same shape,sixe and angles is called similar triangle

2 divided by one third

Answers

2 / 1/3
= 2* 3/1
= 2*3
= 6

Step-by-step explanation:

2÷⅓ so u receprocate and get:

2×3

Olivia brought 3.5 pounds of cheese, she paid $1.75 for each pound how much did she pay? (PLS HELP)

Answers

Answer:

$5.25

Step-by-step explanation:

You just multiply how many pounds of cheese there are by how much a pound costs. You could also multiply 1.75 by 3, and then divide 1.75 by 2, and add it to the product. Hope this helps!

11(7+4)=__x7 + 11x__

Answers

11(7+4)=11x7 + 11x4
I hope this helps!!!

Answer:

(11 x 7) + ( 11x4)=

77+44= 121

1.) Jeffjust bought a house on a triangular lot. The
sides measure 85 feet. 132 feet, and 157 feet. Is his
lot a right triangle?

Answers

Answer:176 feet

Step-by-step explanation:because you multiply all sides of the triangle

x+3/6 = 8/3
Ples answer Imao

Answers

Answer:

x=13 /6

Step-by-step explanation:

Evaluate the function rule for the given value. y = 6 ∙ 2x for x = –2
–24
3
3/2
3/4

Answers

Answer is the first one -24

help plz it due today

Answers

Answer:

Point A - 1/2 and - 1/4

Point B - 2 1/2 and 1 1/2

Point C 1/4 and 1/2

Step-by-step explanation:

Please explain if is proportional or not

Answers

Answer:

Yes

Step-by-step explanation:

1x6=6

2x6=12

3x6=18

4x6=24

Answer:

yes it is porportional they are all

Step-by-step explanation:

At the beginning of a baking session, there were 2.26 kilograms of flour in the bag. By the end of the baking session, there was 0.98 kilogram of flour in the bag. What is the percent of decrease in the amount of flour? Round the percent to the nearest tenth if necessary.

Answers

Answer:

The answer I got was 56.6%.

PLEASE SOLVE, IN A HURRY!!!
WILL NAME BRAINLIEST!!!!

Answers

Answer:

394 miles.

(its hard to explain but you need to spit 1356 and add 284 to one half)

Answer:

820

Step-by-step explanation:

Let us call the trip back x. The trip back is 284 miles smaller than the trip back, so our equation can be:

x + x + 284 = 1356

2x + 284 = 1356

2x = 1072

x = 536

The we do 536 + 284 because the trip there was 284 miles longer, so that is 820

Which table represents y as a function of x?

Answers

Answer:

Table number 1

Step-by-step explanation:

explanation: If the X-inputs (the exes) repeats then the table is not a function.

In the first table all the x-inputs are different.

Hence, table first is the correct answer which [tex]y[/tex] is a function of [tex]x[/tex].

What is a input ?

The input is what goes into the function and the output is what comes out of the function.

Here as per the information, table first is correct because when the values [tex]x[/tex] change then it is a function of [tex]y[/tex] , and as per this concept table first is correct.

Hence, table first is the correct answer which [tex]y[/tex] is a function of [tex]x[/tex].

To know more about input

https://brainly.com/question/13014455

#SPJ2

Does this graph represent a function? Why or why not?

Answers

Answer:

Step-by-step explanation:

B. Yes, because it passes the vertical line test, is the answer.

Cheating can get u far until you have to go to school in person! Please remember to learn :)

Answers

10821308043748737847438738973487943987349387789243298

i just need help with this one question

Answers

Answer: 1/4 chance of picking red

Step-by-step explanation: There are 120 buttons in all, so the fraction of red marbles is 30/120. 30/120 = 1/4

Hope this helps!

Answer:

30/120

Step-by-step explanation:

Add 30+30+60

120/ 4 because 60/2 is 30 so thats two 30s

then there is a 30 out of 120 chance it is red

How do I solve 30+6x=20+8x?

Answers

x=5 combines like terms and from there on divide

Select all the question that are true given the diagram below

Answers

Answer:

a b d

Step-by-step explanation:

most of the data values are ? the mean

Answers

Answer:

........................

A line has a slope of 2 and a y-intercept of -5. What is its equation in slope-intercept form?

Answers

Answer:

y=2x-5

Step-by-step explanation:

A graph of what has space between possible data values

Answers

Answer:

need graph

Step-by-step explanation:

.......................................................

Answers

Answer:

............................................................

Step-by-step explanation:

Answer:

................................................................

7. Find the slope of the line.

Answers

Answer:

1/5

Explanation:

For every two minutes, 10 items get sold. 2/10 is equivalent to 1/5

Answer:

Step-by-step explanation:

take 2 points on the graph, for example (4,20) and (2,10) use y2-y1/x2-x1 to solve ,plug in the values 20-10/4-2= 10/2 = 5

I will give braliest to the person who finishes this first.

Answers

Answer:

1. Ba + B3

2. 100 + 5g

3. 25y - 14

4. 6 + 2x

5. 2Ba + B

6. 8h - 12

7. 28e + 24

8. -20y + 72

9. 39 - 21w

10. 3x + 6

11. 5 + 2y

12. 3a + 10

13. 4k + 7

14. 42 + 11r

15. 13w + 15

16. 5a + 34

17. 22f - 12

18. 9x + 2

Step-by-step explanation:

I hope this was helpful! <3

Could I get brainliest?

Answer:

1. 8a+24

2. 100+5g

3. 35y-14

4. 6+2x

5. 16a+8

6.8h-12

7. 28e+24

8. 78-20y

9. 39-21w

10. 3x+6

11. 5+2y

12.10+3a

13.4k-7

14.42+11r

15.13w+15

16.5a+34

17. 22f-12

18.9x+2.

Step-by-step explanation:

Always remember to multiply the number closes to the brackets by all values in the brackets (Remember, you can always multiple variables by integers, you just can't add them!) Then simplify your answer.

Hope this helps.

270 qt: 105 gal
Simplified

Answers

Answer:

wouldn't it be 18/7

Step-by-step explanation:

270 ÷ 15 over 105 ÷ 15

1) Which is the best estimate for the amount of grass in the lawn

A.125ft
B.125sq ft
C.1,250ft
D.1,250sq ft

2) Which is the best estimate for the total length of the bricks?

A.125ft
B.125sq ft
C.1,250ft
D. 1,250sq ft

Answers

Answer:

for number one the answer is D). 1,250 sq ft. for number 2 it is A.) 125 ft

Thats all you really need to answer, it doesnt ask for you to explain it or anything.

The graph plots for equations, a,b,c, and d: which pair of equations have (4,8) as its solution?

Answers

D and B

Explanation:

when you look at that point two lines pass through it and those two lines that pass through it are b and d.

A shop sells cupcakes 4 for $10 . You can use the table to help you answer the question, but you cannot type in the table itself.

Number of cupcakes Price in dollars
4 $10
1
7
How much would it cost for 7 cupcakes?

Answers

Answer:

Cost of 7 cupcakes will be $17.5

Step-by-step explanation:

Cost of 4 cupcakes sold = $10

We need to find the cost for 7 cupcakes.

We will use unitary method, if we find cost of 1 cupcake then we can find cost of 7 cupcakes.

Cost of 4 cupcakes sold = $10

Cost of 1 cupcakes sold = $10/4

Cost of 7 cupcakes sold = $10/4*7

= $17.5

So, Cost of 7 cupcakes will be $17.5

Please HELP D: what are the Angels of A,B,C,D

Answers

A is 115 - because you minus 65 from 180 since it is a straight line and equals 180

2300 people came to the ball game last week. This week there was a 13% decrease. How many people attended the football game this week. The problem can be represented by the expression p-0.13p.

Answers

Answer: 2001 people attended the football game this week.

Step-by-step explanation:

Given: Total people came to the ball game = 2300

Decrease percent = 13%

Number of people attended the football game this week = p-0.13p, where p= number of people attended football last week.

for p= 2300

Number of people attended the football game this week = 2300- 0.13 x (2300)

=2300- 299

= 2001

hence, 2001 people attended the football game this week.

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