Asked by Carlos
A data set consisting of 3 numbers has mean of 12. The median is also 12. The least number is 5. What is the greatest number.
Answers
Answered by
Lisa
First you know that the mean is 12 (average) which is found by dividing the data by the total set of numbers. Thus multiply 3x12=36
The median is the middle number, so one number must be 12 and they tell you the least number is 5.
5 12 _y__
5+12+y=36
36-5-12=19=y
Therefore the greatest number is 19. To check, you can do 5+12+19 divided by 3 to get your mean which should be 12. And you can already see that the median is 12.
Hope I've helped.
The median is the middle number, so one number must be 12 and they tell you the least number is 5.
5 12 _y__
5+12+y=36
36-5-12=19=y
Therefore the greatest number is 19. To check, you can do 5+12+19 divided by 3 to get your mean which should be 12. And you can already see that the median is 12.
Hope I've helped.