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
SOVA2 [1]
3 years ago
6

I tried using the standard deviation formula but still got the wrong answer. How would I solve this?

Mathematics
2 answers:
nadezda [96]3 years ago
7 0

Answers:

First box = 864

Second box = 3136

=================================================

Explanation:

The weird looking E symbol is the greek uppercase letter sigma which stands for "sum". You'll be adding everything in the x^2 column to find that 64+144+256+400 = 864, which is already done for you in the table (as the 864 is at the bottom of the second column, in the "total" row).

In short, you just copy the 864 into the first box.

-------------

For the second box, you'll square the 56 to get 3136

This is because the table shows that adding up all the x values leads to 56

(8+12+16+20 = 56)

So that means \sum x = 56 and \left(\sum x\right)^2 = (56)^2 = 3136

Taya2010 [7]3 years ago
6 0
First box 864
Second 3136
You might be interested in
How do I write 2\5, 1.4, 1\3, and 0.5 from least to greatest?
Daniel [21]
U need a calculator for this 2 divided by 5 is 0.4 and 1 divided by 3  is 0.3
so from least to greatest is 1/3,2/5,0.5,1.4
4 0
3 years ago
Read 2 more answers
PLEASE HELP PLEASe!!!!
Simora [160]

Answer:

1 just 1 i need 20 characters but ok

5 0
2 years ago
Read 2 more answers
Problem of the Day:
Shtirlitz [24]

Answer:

Step-by-step explanation:

What this question is asking of you is what is the greatest common divisor of 12 and 15. Or, what is the biggest number that divides both 12 and 15.

in order to find this we have to split each number into it's prime components.

for 12 they are 2,2 and 3 (

2

⋅

2

⋅

3

=

12

)

and for 15 they are 3 and 5 (

3

⋅

5

=

15

)

Out of those two groups (2,2,3) and (3,5) the only thing in common is 3, so 3 is the greatest common divisor. That tells us that the greatest number of groups that can exist and have the same number of girls and the same number of boys for each group is 3.

Now to find out how many girls and boys there are going to be in each group we divide the totals by 3, so:

12

3

=

4

girls per group, and

15

3

=

5

boys per group.

(just as a thought exercise, if there were 16 boys, the divisors would have been (2,2,3) and (2,2,2,2), leaving us with 4 groups [

2

⋅

2

] of 3 girls [12/4] and 4 boys [16/4] )

8 0
3 years ago
What is the distance between the florist’s shop (D) and the car wash (E)? Explain using coordinate subtraction.
VARVARA [1.3K]

Answer:

hi! once you link the picture I will answer the problem.

Step-by-step explanation:

5 0
3 years ago
-7 (5y - 2u - 5)<br> Use the distributive property to remove parentheses
Montano1993 [528]
Times -7 by everything in the parentheses. so

-7 times 5y=-35y
-7 times -2u=14u
-7 times -5 = 35

therefore 35y+14u+35
8 0
3 years ago
Other questions:
  • What does the intersection of two coplanar lines form?
    15·2 answers
  • Help me please,Thank;) ONLY IF YOU KNOW THE CORRECT ANSWER
    11·1 answer
  • If A= (0,0) and B = (2,5) what is the appropriate length of AB
    15·2 answers
  • Find value of: cot^-1 (4)<br> (inverse of cotangent). Give the reason of using cosine to evaluate.
    9·1 answer
  • 3208 rounded to the nearest ten place
    6·2 answers
  • Last one pls help for brainlest
    10·2 answers
  • Find the equation of a line given 2 coordinates (5, 5) and (-2, -2)
    11·2 answers
  • For each number, name its opposite. a. -5 b. 28 c. -10.4 d. 0.875 e. 0 f. -8,003
    15·1 answer
  • The attempt to recapture the Holy Land from the Muslims is called the .
    5·1 answer
  • What is the slope <br> 3y = -4x+6
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!