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
yKpoI14uk [10]
3 years ago
11

Square Footage Frequency

Mathematics
1 answer:
kow [346]3 years ago
7 0

Answer:

2424.5

904.16

Step-by-step explanation:

the mean = ∑frequency /n

∑f = 5+17+36+115+125+81+47+45+22+7 = 500

∑xf = 1212250

∑x²f = 3347037625

sample mean = 1212250/500

= 2424.5

variance = 1/500-1[3347037625 - 1212250²]

= 815710.02

standard deviation is = √variance

standard deviation = √815710.02

= 904.16

You might be interested in
What is the value of x? 27(x+4)=−6
jonny [76]
First you need to use the distributive property:   27(x+4)=-6 
                                                                              27x+108=-6
then you need to subtract 108 from -6 to
get x alone.                                                           27x= 102

Lastly divide 102 by  27 to finally get x alone:      x=3.777

the answer would be: x= 3.77 or 3.8
5 0
4 years ago
Calculate the length of AB. *
arsen [322]

Answer:

the answer will be 9.6 cm

4 0
3 years ago
Find the value of r so the line that passes through the pair of points has the given slope.
SOVA2 [1]

Answer:

The missing value in the ordered pair is 66

Step-by-step explanation:

Given that:

(12,10) and (-2,r)

Slope = m = -4

We have to find the value of r so that the line has a slope of -4.

Slope is the steepness of line which is denoted by m.

Here,

x_1=12, y_1=10\\x_2=-2, y_2=r

Putting the values in slope of line formula,

-4=\frac{r-10}{-2-12}\\ -4=\frac{10-r}{-14}\\

Multiplying both sides by -14

-4*-14=\frac{r-10}{-14}*-14\\56=r-10\\56+10=r\\66=r\\ r=66

The value of r is 66

Hence,

The missing value in the ordered pair is 66

4 0
3 years ago
**I WILL GIVE BRAINLIEST TO THE PERSON WHO CAN HELP ME/AND 40 POINTS**
Mama L [17]

Tank calculations :

Volume = 1/4(4/3 * pi * r^3)

r= 70 feet.

Volume = 1/4(4/3 * 3.14 * 70^3)

Calculating the values:

Volume = 359,000.67 ft.cubed

No we divide the actual radius by 6 to get the volume of scale model.

Hence,

6^3 = 216 times smaller.

╦────────────────────────────╦

│Hope this helped  _____________________│    

│~Derelis ____________________________ │

╨___________________________________╨                  

3 0
4 years ago
Read 2 more answers
Ali sells tomatoes to 9 restaurants. each restaurants buys the same amount of tomatoes each day. suppose ali sells 162 pounds of
MariettaO [177]
162 / 9 = 18....so he sells 18 lbs of tomatoes to each restaurant
8 0
3 years ago
Other questions:
  • Please i need help fast <br> find the missing term<br> blank 180 30 5
    12·2 answers
  • Question 10 please :(
    11·2 answers
  • Please someone explain this one? Thank you!
    7·2 answers
  • Help me! Lots of points! Put these numbers in order from least to greatest:<img src="https://tex.z-dn.net/?f=4.35%20%2A%2010%5E%
    11·2 answers
  • Select all that apply.<br><br> Given ΔJKL : ΔXYZ, which of the following are corresponding parts?
    12·1 answer
  • In order to estimate the average time spent on the computer terminals per student at a local university, data were collected fro
    12·1 answer
  • A die is rolled twice
    10·1 answer
  • A help me outtt rq i dont know
    14·1 answer
  • Determine whether the function f(x) = -920 + 6 + 2 is even, odd or neither.
    11·1 answer
  • Is a good economist always objective or
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!