math

posted by .

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 -

    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.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. statistic

    Let's assume there are 3 people in Room A and another 3 people in Room B. The ages of the people in Room A are 25, 25, and 25. The ages of the people in Room B are: 10, 25, and 40. The mean of the ages in both rooms is 25. Does that …
  2. Math

    Sheila's age is two years more than twice Nicole's age. The sum of their ages is the same as Steven's age. If Steven's age is ten years less than five times Nicole's age, ,find the age of each. Write a verbal model!
  3. Statistics

    z Score: When Reese Witherspoon won an Oscar as Best Actress for the movie Walk the Line, her age was converted to a z score of -0.61 when included among the ages of all other Oscar-winning Best Actresses at the time of this writing. …
  4. math

    List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. …
  5. Math

    The ages in years of the houses on Kelly’s block are 20, 26, 11, 2, 28, 18, 2, and 27. Find the mean age of the houses. Find the median age. Find the mode. Which measure(s) would you use to represent the ages of the houses?
  6. Algebra II

    Five years ago, Jane was 1/5 the age of her mother. Now she is 1/3 the age of her mother. Find their ages. Please also tell me the steps to solving this. Thanks!
  7. math

    The range of the of the ages of the Glee club officers is 5. this means that a.) the difference of all ages of the officers is 5 b.) one qualifies to be an officer if he is 5 yrs below the mean age. c.) one qualifies to be an officer …
  8. science computer

    Write a program to read the names and age of 10 people and print the name of the oldest person.assume that there are no person of the same age.data is supplied in the following form:name,age,name,age
  9. Math

    "Jocelyn has 6 birds, their mean age is 10. The mode of their ages is 8. What might their ages be." I need to figure out all 6 birds' ages, but how would I be able to find the answer?
  10. Math

    Fred and Jane are brother and sister. Fred is 3years older than twice jane's age. The sum of their ages is less than 36. Taking jane's age To be x years form a inequation. What can you say about jane's age.

More Similar Questions