The dot plot shows the results of two random samples measuring the mean time, in hours, spent working out in a given week. Which statement is true?
a The students in sample 1 are better at taking tests than the students in sample 2 because the mean study time in sample 1 is noticeable less than the mean study time in sample 2.
b The students in sample 1 are better at taking tests than the students in sample 2 because the mean study time in sample 1 is noticeable greater than the mean study time in sample 2.
c The study time spent by the students in sample 1 varies more than the study time spent by the students in sample 2 because the range for sample 1 is larger.
d The study time spent by the students in sample 1 and the study time spent by the students in sample 2 vary by the same amount because the ranges are equal.
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Related Questions
Simplify the fraction below.
35/4
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Answer:
8 3/4
Step-by-step explanation:
find the greatest common factor of 35 and 4, which is 1. Then divide both 35 and 4 by the greatest common factor to get the following simplified fraction: 35/4
If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. You could convert it into a whole number or mixed number fraction. Which would now be 8 3/4
(If its not right let me know so I can rethink my answer)
8 3/4 as a fraction
can you help me i dont understand it?
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find the area of each of the parts (4 triangles and 1 square)
all of the triangles have the same area since this is a square pyramid
area of triangle = (base X height)/2
so it would be (8 X 9)/2 = 36
for the square, the area is length X width
so it would be 8 X 8 = 64
add all the areas
36+36+36+36+64 = 208
Plz answer this question
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❤Please help if you know how to do it! I have to turn it in by the end of the day and I just need to know there's three to get started!❤
The equation |x| = 100 has two solutions. x = -100 and x = 100 Write two solutions for each variable in the equations
a = 7 a = __________ and a = __________
p = 41 p = __________ and p = __________
y = 256 y = __________ and y = __________
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Answer:
A=7 and A=-7
p=41 and p=-41
y=256 and y=-256
Step-by-step explanation:
tell me if im wrong
Which number is NOT in the solution set of the inequality x < 15?
A)
0
B)
5
C)
10
D)
20
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Answer:
D. 20
Step-by-step explanation:
0, 5, and 10 are all less than 15, as is stated by x<15
just help me please....
Answers
Answer:
The greatest common factor of 175 and 25 is 25
Step-by-step explanation:
The greatest common factor of 175 and 25 is 25! Hope This Helps!
Answer:25
Step-by-step explanation:
the greatest number that can be divided by both numbers
A box contains 6 red marbles, 4 green marbles, 3 blue marbles, and 2 yellow marbles. If Greg chooses one marble at random 300 times, how many times would he expect the marble to be blue?
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Answer:
[tex]60[/tex] times
Step-by-step explanation:
There are [tex]6+4+3+2=15[/tex] marbles in total. Out of those, [tex]3[/tex] are blue, so the probability of pulling a blue marble is [tex]\frac{3}{15}=\frac{1}{5}[/tex]. However, this is only the probability of pulling a blue marble when [tex]1[/tex] marble is pulled at random. Therefore, we can expect a blue marble to be pulled [tex]\frac{1}{5}*300=60[/tex] times if [tex]1[/tex] marble is pulled [tex]300[/tex] times at random. Hope this helps!
Simplify the expression:
1+–4+–7+7k2+8k
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-10+7k^2+8k
Use the scale factor 1:12 to find the missing dimension.
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Answer: the model should be 1.75 feet
EXPLANATION: There is 12”:1” in a foot. So, multiply 21 by 12 for the answer. 21*12=152
The cost of a new television is $948. If the Value of the Television decreases by 4.5% every Year, Which function models the value of this television x years after it was purchased.
A: t(x) = 948(0.955)x^{x}
B:t(x) = 0.955(948)x^{x}
C: t(x) = 0.55(948)x^{x}
D: t(x) = 948(0.55)x^{x}
ty in advance I promise Brainliest to the person with right answer!
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Answer:
Step-by-step explanation:
This is an exponential function of the form F=Ir^t, in this case
t(x)=948(1-0.045)^x
t(x)=948(0.955^x)
So the first answer
Answer:
Step-by-step explanation:
This is an exponential function of the form F=Ir^t, in this case
t(x)=948(1-0.045)^x
t(x)=948(0.955^x)
So the first answer
Who play basketball?
Answers
Answer:
LeBron James
Step-by-step explanation:
36 is what percentage of 128?
A.
B. 28 %
C. 28.125 %
D. 4,608%
Answers
Answer:
C is the correct answer:
Solution for 36 is what percent of 128:To get the solution, we are looking for, we need to point out what we know.
1. We assume, that the number 128 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 128, so we can write it down as 100%=128.
4. We know, that x% equals 36 of the output value, so we can write it down as x%=36.
5. Now we have two simple equations:
1) 100%=128
2) x%=36
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=128/36
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 36 is what percent of 128
100%/x%=128/36
(100/x)*x=(128/36)*x - we multiply both sides of the equation by x
100=3.55555555556*x - we divide both sides of the equation by (3.55555555556) to get x
100/3.55555555556=x
28.125=x
x=28.125
now we have:36 is 28.125% of 128
Step-by-step explanation:
Hope it is helpful....
At a skateboard shop:
a) The price tag on a shirt says $12.58. Sales tax is 7.5% of the price. How much will you pay for the shirt? Show your work
b) The store buys a helmet for $19.00 and sells it for $31.50. What percentage was the markup? Show your work
c) The shop pays workers $14.25 per hour, plus 5.5% commission. If someone works 18 hours and sells $250 worth of merchandise, what is the total amount of their paycheck for this pay period? Show your work
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Answer:
a= 7.5%12.58= 0.9435 round 0.94+12.58= 13.52
b= 31.50 divided by 19.00= 1.65789474 round 1.66
c= (14.25 x 18)+ (5.5%250)
l l
v v
256.50 + 13.75 = 270.25
Step-by-step explanation:
The weights of 5 girls are 70 pounds, 68 pounds, 85 pounds, 62 pounds, and 70 pounds. Nina finds measures of center and measures of variation of this data. Match the descriptions to the type of measure.
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Answer:
mean
Step-by-step explanation:
brainliest please
In 1956, Dwight Eisenhower became President with 58% of the vote.
Which of these shows 58% as a fraction in lowest terms and as a decimal?
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Answer:
29/50
Step-by-step explanation:
.58 is the decimal
pls help with this i will give u brain list and if u have nonsense u get reported :)
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Answer:
Step-by-step explanation:
Pencil is the original figure, blue ink is the translated figure. The vertices for the translates figure are written to the side
Alrighty- start off by labeling each section starting from the origin.
Then, graph the points that coordinate with the numbers.
From what is shown, they are rectangles, so you will have four points on each grid.
Connect the dots to form the rectangle, since i dont have this sheet i cant demonstrate.
if you dont understand just use this~
Number each line on the y and x axis.
Plot each point with the number it corresponds with.
Connect the dots to form the shape.
Im so sorry i can't give an exact answer to this one, if it did help please give brainliest (if you want to no pressure)
1) )A locker combination has three nonzero digits, with no repeated digits. If the first digit is a 2, what is the probability the second digit is also even?
2) Event A: Spinning green or yellow on the spinner shown
Event B: Rolling an odd number on a number cube
What is P(A and B)?
3) A locker combination has three nonzero digits, with no digit repeated. If the first two digits are odd, what is the probability that the third digit is also odd?
4) A bag has 4 blue marbles, 6 green marbles, 2 red marbles, and 3 yellow marbles. Jasmine draws a green marble and does not replace it. What is the probability of drawing a green marble next?
5) A bag has 7 blue marbles and 3 red marbles. What is the probability of drawing two red marbles, if the first marble is replaced after it is drawn?
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Mae Ling earns a weekly salary of $310 plus a 7.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,700 worth of merchandise?
someone please answer ASAP i'll give brainlist to the best answer <3
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Answer: 662.50 dollars
==========================================================
Explanation:
If she doesn't sell a single thing, she still earns the base weekly salary of $310. This is the smallest amount she can earn per week.
If she does make sales, then she'll earn an additional 0.075x dollars where x is the amount of sales made (the total value of the merchandise). The 0.075 is the decimal form of 7.5%
In total, she makes 0.075x+310 dollars per week. In this case, she sold x = 4700 dollars worth of goods, which means,
0.075x+310 = 0.075*4700+310 = 662.50
She earned 662.50 dollars for that week.
Help please i dont understand
Turn it btw
Answers
Answer:
1 + 3/6
Step-by-step explanation:
the first full thing represents 1 then there are 3 of 1/6 which is 3/6
6) Write a system of linear inequalities that is given by the following graph.
Answers
Answer:
The system of inequalities are x - y < 1 and y < - 2 The horizontal line shown in the graph has equation y = - 2 {As it is parallel to x-axis} Now, this line is dotted and the lower portion of the graph is shaded. So, the inequality will be y < - 2 ......... (1) Again, another line is there in the graph which passes through the points (1,0) and (0,-1)So, its equation will be
⇒ y + 1 = x ⇒ x - y = 1 Now, the origin (0,0) is within shaded zone of the inequality and putting x = 0 and y = 0, we get 0 - 0 < 1 So, the equation of the inequality is x - y < 1 {As the line is dotted} Therefore, the system of inequalities are x - y < 1 and y < - 2 (Answer)
Step-by-step explanation:
Need help plz this is math. Don’t answer if you don’t know. I will give brainliest to the right answer.
Answers
Answer:
i know that x is an acute angle
Step-by-step explanation:
Answer:
wait so u dont need it anymore???
Step-by-step explanation:
Please help me I'm confused on this.
Answers
Answer:
divide by 8
2.25 cubic units
Step-by-step explanation:
3 x 6 half cubes = 18 half cubes
one cubic unit =1/8 cubic units
18/8=2.25 cubic units
Answer:
12.
Step-by-step explanation:
18 ÷ 1 1/2 = 12.
There are 18 half cubes total. It is 18 divided by 1 and a 1/2 equals 12 which is eighteen divided by one and a half equals twelve.
18 divided by 1 1/2 = 12.
will mark brainliest. only answer if you know it. random answers will be reported.
Answers
Answer:
Step-by-step explanation:
x=[tex]\sqrt{15^{2} -12^{2} }[/tex]
x=9 in.
So if we plug in a as 12 and c as 15 we get 144+b^2=225 we then solve to get b^2=81 and so b=9.
In your case, b=x, therefore x=9.
The length of the brace for the mainsail of the boat is 9in.
128/17 simplified find the whole
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Answer:
128/17 simplified is 7 9/17
128/17 rounded is 128
please help fast
WITHOUT WORKOUT IS ACCEPTED
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Answer:
the answer would actually be 38 but thats one of the choices so the closest would be 34
not one of the Step-by-step explanation:
the angle across the one which is 128 degrees is also 128 degrees. but it is split into two. and one of the angle which is split into is 90 degrees. we know this by the little box. and to get the value of the other angle we would have to do this:
128 - 90 = 38
but 38 isnt one of the choices so i guess put 34
Answer:
sorry i'll come back later and try to work it out. :)
Step-by-step explanation:
I need help with finding the percent. Please help me with this
Answers
40%
The number twenty is double of 10 so think of it as 10 but double the reaction see 10 percent of 20 is .5 but 10% of 10 is one...double .5 hope this helps!
Can someone please help with the Surface Area of this. I need the right answer so that i wont get murdered by my mom and so i can stay alive longer
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Answer:
32
Step-by-step explanation:
you use different formulas on different sides. bh, 1/2bh
If n=6 what is the value of n^2
Answers
Answer:
36
Step-by-step explanation:
if n=6 and the equation is n^2
then you would times 6x6
which equals 36
Hope this helped!
can u help me plssssssssssss
Answers
y - 2/9 ≤ 5/9
Add 2/9 to both sides:
y ≤ 5/9 + 2/9
Simplify 5/9 + 2/9 to 7/9:
y ≤ 7/9
y - 2/9 ≤ 5/9
y ≤ 5/9 + 2/9
y ≤ 7/9
Step-by-step explanation:
What is the surface area?
7 m
5 m
4 m
Answers
Answer:
surface area of cuboid=2(lb+bh+hl)
surface area of cuboid=2(7×5+5×4+4×7)
surface area of cuboid=166m²
if the shape is cuboid if it's not than tell me on comment section the figure i can help you.
