What is the mean and the range in this set of data?here is the data: wayne gretsky:91 brett hull:86 mario lemieux:83 phill esposito:77 alexander mogilny:78 *PLEASE HELP ME THIS IS A LITTLE MATH...

What is the mean and the range in this set of data?

here is the data:

wayne gretsky:91

brett hull:86

mario lemieux:83

phill esposito:77

alexander mogilny:78

*PLEASE HELP ME THIS IS A LITTLE MATH PROBLEM THAT I DO NOT UNDERSTAND ANYTHING OF IT. PLASE THIS IS ABOUT MEAN, MEADIAN, MODE, AND RANGE. PLASE HELP ME!!!!!!!!

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wannam's profile pic

wannam | High School Teacher | (Level 3) Educator

Posted on

The mean of a set of data is defined as "the sum of the variable divided by the number of the variables."  In most cases, mean is a synonym for average.  `(91+86+83+77+78)/5=83` In this case, the mean can be determined to be 83.  The median is the middle number when all the numbers in the data set are arranged from lowest value to highest value.  If there are an even number, the median is the average, or mean, of the two middle numbers.  List the data set in order (`77, 78, 83, 86, 91` ) and we see the median is also 83.  As mode is the number that occurs most frequently, it does not apply here because no numbers repeat.  The range "the length of the smallest interval which contains all the data."  Basically this means the difference between the smallest number and the largest. Since  `91-77=14`, the range of this data set is 14.

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bergcar's profile pic

bergcar | Student, Grade 11 | (Level 1) Valedictorian

Posted on

Mean:83

Median:83

Mode: no mode

Range: 14

to find the mean you add up all the numbers and divide so all of the numbers add up equals 415 then divide that by 5 and you get 83. to get the median you put the numbers in order from least to greatest and go from small to largest if you have an even number you add them up and divide by 2 but you have an odd number so the median is 83. to find mode is just the number that appears the most so there is no mode. range is just take the largest number minus the smallest number so the range is 14. also for mode there can be more then 1 mode

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