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
Sidana [21]
3 years ago
14

The following data are the distances between 20 retail stores and a large distribution center. The distances are in miles.

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
4 0

Answer:

1191.4 ; 34.5

Step-by-step explanation:

Given the data:

29; 37; 38; 40; 58; 67; 68; 69; 76; 86; 87; 95; 96; 96; 99; 106; 112; 127; 145; 150

The sample variance and standard deviation can be obtained thus :

Σ(X - m)² / (n - 1)

Where, m = mean of the sample

n = sample size

The standard deviation equals, sqrt(variance )

Using a calculator:

The variance, σ² ;

Mean = Σx / n = 1681 / 20 = 84.05

(x -m)^2

[(29-84.05)^2 + (37-84.05)^2 + (38-84.05)^2 + (40-84.05)^2 + (58-84.05)^2 + (67-84.05)^2 + (68-84.05)^2 + (69-84.05)^2 + (76-84.05)^2 + (86-84.05)^2 + (87-84.05)^2 + (95-84.05)^2 + (96-84.05)^2 + (96-84.05)^2 + (99-84.05)^2 + (106-84.05)^2 + (112-84.05)^2 + (127-84.05)^2 + (145-84.05)^2 + (150-84.05)^2] / 19

22636.95 / 19

= 1191.4184 = 1191.42

Standard deviation = sqrt( Variance)

Standard deviation = sqrt(1191.4184)

Standard deviation = 34.516929 = 34.52

You might be interested in
Help please! Its worth 25.. no links or files
NeX [460]

Answer:

C

Step-by-step explanation:

4*5=20 include c, and 4*-2=-8 include d

6 0
2 years ago
What is the value of x and y? <br><br> HELP ME OUT BRO PLEASE THIS IS DUED BY 9 pm ughhh
Rufina [12.5K]

Answer:

x = 4 y = 2✓3

Step-by-step explanation:

I'm big brain

4 0
3 years ago
If I get paid every Thursday and my check is roughly $100 and I put back $20 every week for a trip, how long will it take me to
zhenek [66]
There are 52 weeks in a year ,so each week you put away $20 every week.It will take 100 weeks to reach $2,000.
3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP NO LINKS PLEASE A relationship between education and income is given in the table. Based on the data, how much
77julia77 [94]
I think it’s c because i did the same test so good luck
4 0
2 years ago
What is the product of 45 and 60?
Feliz [49]
<u><em>45×60=2700</em></u>
<u><em>And to check divide </em></u>
<u><em>2700÷60=40</em></u>
<u><em>2700÷40=60</em></u>
<u><em>Have a great time miss!</em></u>
7 0
3 years ago
Read 2 more answers
Other questions:
  • On planet Zorg, a 30 kg barbell can be lifted by only exerting a force of 180N. What is the acceleration of gravity on Planet Zo
    11·1 answer
  • How do i find out what is 5% of 30
    14·2 answers
  • Solving Multi-Step Equations
    11·1 answer
  • The first term of an arithmetic sequence is -30 and the common difference is 8. Find the 20th term.
    5·1 answer
  • PLEASE SOMEONE HELP ME!!! I'm stuck on this problem!!! (THE DIRECTION IS ---"Find the area of the figure")
    15·2 answers
  • The number of chaperones at a school field trip must be 1/5 of the number of students attending, plus the 2 teacher sponsors. Wr
    11·1 answer
  • On a coordinate plane, a triangle is reflected across y = negative 2.
    8·2 answers
  • If k(x) = 5x - 6, which expression is equivalent to (k+ k)(4)?
    12·1 answer
  • Find the area of the figure.
    8·2 answers
  • Which states the following?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!