All categories

2 years ago

According to the box-and-whisker plot shown below, what are the following:

Mathematics

2 answers:

Andrej [43]2 years ago

7 0

Answer:

6) The median is 80

7) The 1st quartile is 60

8) The 3rd quartile is 100

9) The minimum value is 40

10) The maximum value is 110

Step-by-step explanation:

Line up where the points are

zysi [14]2 years ago

5 0

Median= middle so that would be 80
first quartile= 50
third quartile= middle of 100 and 150
the minimum= 40
the maximum= 150
i hope this helped!!

You might be interested in

Stacy earns $15 each week plus $.50 for each customer on her paper route. She wants to earn at least $25 each week. What equatio

Airida [17]

Answer: .50x+15=25

I hope this helps.

6 0

2 years ago

A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only

Semenov [28]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is:

X: Number of people that support the candidate.

You need to calculate the sample size to estimate the population proportion of supporters given a confidence level of 99% and a margin of error of 4%

The margin of error of the confidence level for the population proportion is

d= $Z_{1-\alpha /2}$ * $\sqrt{\frac{p'(1-p')}{n} }$

From this formula you have to clear the value of n:

$\frac{d}{Z_{1-\alpha /2}}$ = $\sqrt{\frac{p'(1-p')}{n} }$

$(\frac{d}{Z_{1-\alpha /2}})^2$ = $\frac{p'(1-p')}{n}$

$n*(\frac{d}{Z_{1-\alpha /2}})^2$ = $p'(1-p')$

n= $p'(1-p') * (\frac{Z_{1-\alpha/2}}{d} )^2$

$Z_{1-\alpha/2}= Z_{0.995}= 2.586$

sample proportion "p'" since there is no sample information, nor any previous information is known, you have to consider it as the "worse case scenario" and use the value of p'= 0.50

d= 0.04

$n= p'(1-p') * (\frac{Z_{1-\alpha/2}}{d} )^2= 0.5*0.5*(\frac{2.586}{0.04} )^2= 1044.9= 1045$

She has to take a sample of 1045 people to estimate the population proportion of her supporters with a confidence level of 99% and a margin of error of 4%

I hope this helps!

4 0

2 years ago

a shape is randomly selected from the following quadrilaterals: parallelogram, rhomus, trapaziod, rectangle, square. what is pro

Artyom0805 [142]

Answer:

Step-by-step explanation:

So, it's hard to know if the sides on the parallelogram are equal or not, but both a rhombus and square have four congruent sides, but only a square has four right angles.

So 1/2 shapes fit both parameters. Therefore there is a 50% probability it has four right angles, given that it has four congruent sides.

5 0

2 years ago

What I need to know is what is the first step when solving this equation?

ASHA 777 [7]

First step...add 11x to both sides

7 0

2 years ago

Which of the following does NOT reflect a possible relationship within a circle-

Anton [14]

Answer:

Step-by-step explanation:

B does not represent a possible relationship within a circle. The circumference of B, based upon the given d = 7 in, is 21.99 in, not 19.5 in.

3 0

1 year ago