Posted by **Diana** on Wednesday, January 5, 2011 at 12:08am.

The names and ages for each person in a family of five follow:

Name Dick Jane Kirk Jean Scott

Age 40 36 8 6 2

a. What is the mean age?

b. Find the mean of the ages 5 yr from now.

c. Find the mean 10 yr from now.

d. Describe the relationships among the means found in

(a), (b), and (c).

- math -
**drwls**, Wednesday, January 5, 2011 at 9:13am
a. (40 + 36 + 8 + 6 + 2)/5 = ____

(It will not be an integer)

b. If everybody's age increases by 5, so does the average

c. Apply similar logic

d. If everybody's age increases by N, so does the average

Since we are dealing with a fractional average, the ages should have been given to the nearest tenth year. The computed average is probably low. A person who is "6" for example, could actually be 6.9 years old.

## Answer this Question

## Related Questions

- Algebra II - Five years ago, Jane was 1/5 the age of her mother. Now she is 1/3 ...
- Math - Sheila's age is two years more than twice Nicole's age. The sum of their ...
- math - List the ages of two people in your life, one older than you and one ...
- Econ MC - Dick owns a dog whose barking annoys Dick's neighbor Jane. Suppose ...
- math - List the ages of two people in your life, one older than you and one ...
- Math - The ages in years of the houses on Kelly’s block are 20, 26, 11, 2, 28, ...
- Calculus - On Dick's birthday, his brother Harry is seventeen years younger than...
- math - Kelly is 13 years younger than twice Jane's age. Write an expression for ...
- statistics - Will is convinced that there is a relationship between a woman's ...
- math problem - - Mr. Hermann, a stamp collector , sold 2 stamps for $5000 each. ...

More Related Questions