All categories

3 years ago

Explain how to solve the two questions from the circle graph and give the answer.

Mathematics

1 answer:

7nadin3 [17]3 years ago

7 0

Answer:

9 and 23

Step-by-step explana

im smart

You might be interested in

the school is selling tickets to the anual talent show on the first day they sell 14 adult tickets and 2 student tickets for a t

kolbaska11 [484]

Hi how are you doing today Jasmine

8 0

3 years ago

What is the slope of points (-3,-3) and (4,5)?

Veseljchak [2.6K]

The slope is 2. y2-y1/x2-x1

8 0

3 years ago

Which must be true I NEED HELP

tatyana61 [14]

Answer:

I beileve it's C.

6 0

3 years ago

Sovle 4 pls and thank you

max2010maxim [7]

Answer:

3x^5y

Step-by-step explanation:

6 0

4 years ago

Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic

Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

b) $s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

c) For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

$SS = \sum_{i=1}^n (X_i -\bar X)^2$

And the sample variance for this case can be calculated from this formula:

$s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

8 0

3 years ago