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
KengaRu [80]
2 years ago
15

The following are prices of selected digital cameras. $158, $95 ,$175, $180 ,$95,$129, $228, $300 Find the standard deviation.

Mathematics
1 answer:
miskamm [114]2 years ago
5 0

Answer: 69.23

Step-by-step explanation:

Given data:

N = 8.

μ = 170.

Solution:

First we calculate for the mean.

= 158 + 95 + 175 + 180 + 95 + 129 + 228 + 300/8

= 1360/8

= 170.

Next we calculate for (xi - μ)

(158 - 170) = (-20)^2 = 400

(95 - 170) = (-75)^2 = 5625.

(175 -170 ) = (5)^2 = 25.

(180 -170) = (10)^2 = 100

(95 - 170) = (-75)^2 = 5625.

(129-170) = (-41)^2 = 1681

(228 -170) = (58)^2 = 3364.

(300-170) = (130)^2 = 16900.

Summation of (xi - μ)

= 400 + 5625 +25 + 100 + 5625 + 1681 + 3364 + 16900

= 33720.

S = Σ√(xi - μ) /n-1

= √( 33720 - 170 ) / 8-1

= √ (33550/7)

= √4792.86

= 69.23

Standard deviation is 69.3

You might be interested in
What is the value of the expression below when y = 5?
muminat

Answer:

56

Step-by-step explanation:

10y+6

10(5)+6

10*5=50

50+6=56

3 0
2 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST! A circle has a diameter AB, and its center is at (-3, 3). Point A is at (1/2,6)
kow [346]

Using the mid-point concept, it is found that point B is located at coordinates (-6.5, 0).

<h3>What is the midpoint concept?</h3>

The midpoint between two points is the halfway point between them, and is found using the mean of the coordinates.

The center is the midpoint of the two coordinates of the diameter, hence:

C = \frac{B + A}{2}

For the x-coordinate:

-3 = \frac{x + 0.5}{2}

x + 0.5 = -6

x = -6.5

For the y-coordinate:

3 = \frac{y + 6}{2}

y + 6 = 6

y = 0

More can be learned about the mid-point concept at brainly.com/question/10956693

#SPJ1

3 0
2 years ago
What is the median of 70,50,30,40
Marina86 [1]

Answer:

45

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP
Ahat [919]

Answer:

5x+32

Step-by-step explanation:

So write out as an expression

Amy= x

Baz = x+8

Carla = 3(x+8)

Total= x +x + 8 +3x+ 24

= 5x+32

8 0
3 years ago
The ratio of the perimeters of two similar triangles is 4:3. What are the areas of these triangles if the sum of their areas is
emmasim [6.3K]

Answer:

the areas of these triangles are 83.2cm² and 46.8cm²

Step-by-step explanation:

1. If the triangles are similar and the ratio of the perimeter ois 4:3, then the areas are in the following ratio:

4²:3²

 16:9                                                                      

2. The sum of their areas is 65 cm², then, you can calculate the area of the larger triangle as following:

130(16/16+9)

130(0.64)

=83.2cm²

3. The area of the smaller triangle is:

130(9/16+9)

130(0.36)

46.8cm²

<u>Hope this help</u>s

6 0
3 years ago
Other questions:
  • 10x - 7x+1<br> Product:<br> Sum:
    14·2 answers
  • If you can run at 10mail an hour then how far can you get in 10 days and you take no brakes
    8·2 answers
  • How many expressions are equivalent to 3/4
    9·1 answer
  • The annual health insurance premium for Ms Everett is $12,304. her employer pays 70% of the premium and deducts the remainder fr
    13·2 answers
  • One of the zeros of f(x)=x^3-6x^2+11x-6 is 3. What are the other zeros of the function?
    7·1 answer
  • A) 11√7-18√7+6√7<br>b) (-5√3)•(6√7)<br>c) (48√35):(6-√7)<br>d) √5² <br>e) (-2√3)²<br>f) (√13)-2​
    5·1 answer
  • Emily deposited $250 in a new account at her bank.
    5·1 answer
  • Please help i really need it
    6·2 answers
  • 16fy
    15·1 answer
  • The top of a rectangular table has an area of 11 square feet. It has a length that is 3.5 feet more than the width. Find the dim
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!