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
Olin [163]
3 years ago
11

Sunshine City was designed to attract retired people. Its current population of 75,000 residents has a mean age of 63 years and

a standard deviation of 17 years. The distribution of ages is skewed to the left. A random sample of 250 residents of the city had a mean of 61.4 and a standard deviation of 19. Show work for any necessary calculations. (6 pts) a) Identify the variable of interest. b) Describe the center and spread of the population of Sunshine City. c) Describe the center and spread of the random sample of Sunshine City residents taken. What shape does it probably have
Mathematics
1 answer:
Leokris [45]3 years ago
7 0

Answer:

a) Identify the variable of interest.

Ages of the residents

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

Step-by-step explanation:

a) Identify the variable of interest.

Ages of the residents

The center of a distribution tells us about the Mean or Median of the distribution

The spread of a distribution tells us about the standard deviation of the population

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = Mean of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = Standard Deviation of the population = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

This is because the mean is farther out to the left side of the tail of the distribution.

You might be interested in
Help please!!!!!!!!!!!!
matrenka [14]

Answer:

your answer is as follows

Step-by-step explanation:

5x+20=3x+60

2x=40

x=20

(equating the slopes)

8 0
2 years ago
What is the greatest common factor of the polynomial below 12x^2-9x
wlad13 [49]

Answer:

the greatest common factor of this is 3

3 0
3 years ago
Another math two step equation, please help thank you.
ValentinkaMS [17]

1.25*(t)+7=43.25


To solve the  2nd one, you must do 43.25 - 7 = 26.25

36.25 divided by 1.25 = 29

4 0
3 years ago
PLS HELP WILL GIVE BRAINLIEST
Vanyuwa [196]

Answer:

The correct answer is the last choice. It travels for 2 hours, then stops for 1 hour, and finally travels again for 2 hours.

Step-by-step explanation:

In the first segment of the trip, the car goes from 0 to 2 hours and the line is moving up. Therefore, it traveled for 2 hours.

In the second segment, the line went straight horizontal for 1 hour. That means the distance didn't change, in other words, it didn't move.

In the last segment, it moved up again for 2 hours.

7 0
2 years ago
Read 2 more answers
Which statement correctly explains how Dana can solve the following system of linear equations for x using the elimination metho
Vanyuwa [196]
1. The correct statement is the first one, which is: <span>Add the two equations, solve for y, and then substitute –1 for y to find x.
</span>
 2. Therefore, you have the following system of equations:
<span>
 4x+8y=20
 -4x+2y= -30

 3. When you a</span>dd the two equations, and clear the variable "y", you obtain:

 10y=-10
 y=-1

 4. Now, you must substitute -1 for y (y=-1) to find x, as below:

 4x+8y=20
 4x+8(-1)=20
 4x-8=20
 4x=20+8
 4x=28
 x=28/4
 x=7
6 0
3 years ago
Read 2 more answers
Other questions:
  • Does the following infinite series converge or diverge?
    5·1 answer
  • Please help thank you.
    5·1 answer
  • How to solve this equation of the missing sides of the triangle
    11·1 answer
  • A printer can print 27 pages in 4.5 minutes. How much time does it need to print 324 pages?
    8·1 answer
  • Solve for the value of z: 90/15=6/z help asap !!
    5·2 answers
  • Use proportion to find the whole 75 is 15% of what number
    5·2 answers
  • Given vectors u = (−1, 2, 3) and v = (3, 4, 2) in R 3 , consider the linear span: Span{u, v} := {αu + βv: α, β ∈ R}. Are the vec
    11·1 answer
  • The research department at the company took a sample of 25 comparable textbooks and collected information on their prices. This
    13·1 answer
  • I need to know the answer for 15, if you can please show your work
    10·1 answer
  • 1. Draw the table and fill on the boxes
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!