1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GalinKa [24]
3 years ago
15

What is the variance of the following data? If necessary, round your answer to two decimal places.12, 13, 8, 13, 9, 11, 12, 9, 1

1
Mathematics
1 answer:
siniylev [52]3 years ago
8 0
To find the variance, 1. Find the arithmetic mean (average) 2. Find the distance of each number from the mean (x-the mean=?) 3. Square each number 4. Add up all of the squares 5. Divide the final sum by the original mean. 
You might be interested in
What is the slope of the line represented by the equation y = -x + 1 ?​
loris [4]

Answer:

-1 is the slope

8 0
3 years ago
Combs and Stratton invested $140,000 and $360,000, respectively, in a partnership. They agreed to share net income in proportion
Phoenix [80]

Answer:

Comb's share will be =  $12,180

Stratton's share will be = $31,320

Step-by-step explanation:

Given:

Comb's investment in the partnership = $140,000

Stratton's investment in the partnership = $360,000

The net income is shared in proportions of their investment.

Net income last year  = $43,500

To find the share of each partner of the net income.

Solution:

Ratio of the investments of Comb to Stratton = \frac{140,000}{360,000}= \frac{14}{36}=\frac{7}{18} (Simplest ratio)

Thus, the investments must be shared in the ratio of 7 : 18

Let Comb's share in dollars be = 7x

Then, Stratton's share in dollars = 18x

Total net income can be given as = 7x+18x=25x

Net income = $43,500

So, we have:

25x=43,500

Dividing both sides by 25.

\frac{25x}{25}=\frac{43,500}{25}

∴ x=1740

So, Comb's share will be = 7\times 1740 = \$12,180

Stratton's share will be = 18\times 1740 = \$31,320

7 0
4 years ago
ms.edwards wants to buy pizza for her kids. she buys a salad for $20 and each pizza costs $12. if she spent a total of $80 how m
Leona [35]

Answer:

5

Step-by-step explanation:

She spent a total amount of $80...

she bought herself a salad of $20......

$20 dollar subtracted from $80 is $60......

and if a pizza cost $12......

$60 divide by $12 is equal to 5

<em>therefore she bought 5 pizzas for her kids</em>

6 0
3 years ago
Please Help!! I'll make you brainliest!!!
VARVARA [1.3K]
I beleave it is D but i may be wrong hope it melps anyway
7 0
3 years ago
Read 2 more answers
The graphs of f(x) = 5x and its translation, g(x), are
HACTEHA [7]

Answer: g(x)=5^x - 10

Step-by-step explanation:

g(x) is the graph of f(x) translated 10 units down.

5 0
2 years ago
Other questions:
  • A grocer wants to make a 10-pound mixture of cashews and peanuts that he can sell for $3.29 per pound.
    8·1 answer
  • A rectangle is dilated by a scale factor of 3. What will be the resulting effect on the area?​
    8·2 answers
  • Simplify 3.3√40-4.3√320-3√5​
    15·1 answer
  • -6-8(-8x-3) please help me and with how you did it
    9·1 answer
  • HURRY WHOEVER ANSWERS FIRST WILL BE THE BRAINLIEST!!
    12·1 answer
  • Explain how you could determine whether a calculator correctly performs the order of operations
    8·1 answer
  • I have a bag of marbles. 4 are blue, 3 are orange, 2 are red, and 1 is purple.
    10·1 answer
  • 9. Ellie is making a batch of pancakes
    7·1 answer
  • A container with 2 5/6 gallons of weed killer can spray 3 5/6 lawns. How many gallons would it take to spray 3 lawns? Please hel
    9·1 answer
  • Choose either yes or no to tell if each of the following represents 0.87.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!