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3 years ago

What is the surface area of the rectangular prism below?

Mathematics

1 answer:

sveta [45]3 years ago

3 0

Where is the picture

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The data (1.5.8.5.1) represent a random sample of the number of days absent from school for five students at Monta Vista High. F

lianna [129]

Answer:

$\bar X = \frac{1+5+8+5+1}{5}= \frac{20}{5}= 4$

$\sigma= \sqrt{\frac{(1-4)^2 +(5-4)^2 +(8-4)^2 +(5-4)^2 +(1-4)^2}{5}} =\sqrt{\frac{36}{5}}= 2.68$

And based on this the best answer would be:

a. mean = 4; standard deviation = 2.68

Step-by-step explanation:

For this case we have the following data given:

1,5,8,5,1

We can find the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = \frac{1+5+8+5+1}{5}= \frac{20}{5}= 4$

And for the deviation (assuming that the correct approximation is the deviation for a population) we can calculate the deviation with the following formula:

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

And replacing we got:

$\sigma= \sqrt{\frac{(1-4)^2 +(5-4)^2 +(8-4)^2 +(5-4)^2 +(1-4)^2}{5}} =\sqrt{\frac{36}{5}}= 2.68$

And based on this the best answer would be:

a. mean = 4; standard deviation = 2.68

3 0

4 years ago

Helpppppppppppppppppppp

nata0808 [166]

Answer:

Step-by-step explanation:

x=100 (vertically opposite angle)

6 0

3 years ago

Can someone help <br> due today

jekas [21]

Answer:

b=-.6

Step-by-step explanation:

5b= -3

b= -3/5

b= -.6

7 0

3 years ago

Evaluate each expression if w = 2, x = 3, y = 5, and z = 6.<br><br><br> z/2=

faust18 [17]

Answer:

Step-by-step explanation:

We plug in 6 for z

z = 6

z/3

6/2

8 0

3 years ago

Read 2 more answers

please help 1.Bryce started with $450 in a bank account that does not earn interest. In the middle of every month, he withdraws

denis23 [38]

Since during middle of each month, Bryce withdraws half of his amount. So at the end of each month, his balance is 1/2 times as compared to balance of his previous month.

The following recursive function represents the Brye's balance at end of each month:

$a_{n}= \frac{1}{2}* a_{n-1}$

where $a_{n-1}$ is the account balance of previous month. And $a_{n}$ is the account balance of current month.

4 0

3 years ago