# Mean and Range

• May 3rd 2010, 06:35 AM
molly
Mean and Range
I've got a maths exam next week and i need to know how to work this question out for my revision so please could u show me:

(a) From 5th May 2000 to 5th May 2001 a swimming club had the same members. Complete the table to show information about the ages of these members:

Mean (5fh May 2000) - 24 years 3 months
Range (5th May 2000) - 4 years 8 months
Mean (5th May 2001) - ........................
Range (5th May 2001 - ........................

(b) Mean - 17 years 5 months
Range - 2 years 0 months

A new member, aged 18 years 5 months is going to join the club.
What will happen to the mean age of the members?
What is the correct state ment?
It will increase by more than 1 year.
It will increase by exactly 1 year.
It will increase by less than a year.
It will stay the same.
It's not possible to tell.

• May 3rd 2010, 08:38 AM
TKHunny
Quote:

Originally Posted by molly
(a) From 5th May 2000 to 5th May 2001 a swimming club had the same members. Complete the table to show information about the ages of these members:

Mean (5fh May 2000) - 24 years 3 months
Range (5th May 2000) - 4 years 8 months
Mean (5th May 2001) - ........................
Range (5th May 2001 - ........................

You may be in trouble.

Mean: What happens to peoples' age every year? "+1"
Range: Why would the range change?

Quote:

(b) Mean - 17 years 5 months
Range - 2 years 0 months

A new member, aged 18 years 5 months is going to join the club.
What will happen to the mean age of the members?
What is the correct state ment?
It will increase by more than 1 year.
It will increase by exactly 1 year.
It will increase by less than a year.
It will stay the same.
It's not possible to tell.
There is no working. These are eyeball questions.

Mean: The new member is older than the mean age. Wouldn't that increase the mean?
Mean: The precise increase depends on the number of members. Insufficient information.