2 years ago

What is the standard deviation of the data set 21 ,6,18,21,20,14,19

Mathematics

1 answer:

VashaNatasha [74]2 years ago

8 0

21 is the answer i think idk try dividing them all or finindng something or look up how to find a standard deviation

You might be interested in

The total length of a road trip was 16.2 hours. If highway signs are posted every 0.6 hours, including one at the end of the roa

serg [7]

Answer:

5 highway signs

Step-by-step explanation:

5 0

2 years ago

Evaluate each expression for g = -7 and h = 3 and match it to its value.

Molodets [167]

The given expressions are solved and matched

<h3><u>Solution:</u></h3>

To match the given expressions we need to solve the expressions with the given values of g and h and find their value.

Given that g = -7 and h = 3

$\begin{array}{l}{\text { 1) } g+h=-7+3=-4} \\\\ {\text { 2) } g-h=-7-3=-10} \\\\ {\text { 3) } h-g=3+7=10} \\\\ {\text { 4) } g h=-7 \times 3=-21} \\\\ {\text { 5) } g+h^{2}=-7+3^{2}=-7+9=2} \\\\ {\text { 6) } g^{2}-h=(-7)^{2}-3=49-3=46}\end{array}$

3 0

2 years ago

A movie rental store charges a $6 membership fee plus $2.50 for each movie rented. What are the slope and y-intercept that repre

Olegator [25]

There searched up please be correct

8 0

2 years ago

Read 2 more answers

Mr. Santos purchased pizza and soda. Each pizza cost $14.50. He spent $127 on the soda. If he spent $315.50, use the equation 14

natali 33 [55]

Answer:

13 pizzas he bought

Step-by-step explanation:

315.50 - 127 = 188.50 then do 188.50 divided by 14.50 = 13

Hope this helps :)

4 0

2 years ago

The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to th

irakobra [83]

ANSWER

The percentage decrease is 10.4%.

EXPLANATION

To calculate percentage decrease, use the formula,

Percentage decrease

$= \frac{new \: price - old \: price}{old \: price} \times 100\%$

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.

$= \frac{2.15 - 2.40}{2.40} \times 100\%$

$= \frac{ - 0.25}{2.40} \times 100\%$

$= - 0. 10416667 \times 100\%$

$= - 10.416667\%$

To the nearest tenth, we have:

$- 10.4\%$

Therefore the percentage decrease is 10.4%.

8 0

2 years ago