Question

Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. Which student found the correct mean?

Ashrita's work
26 +31 +39+30+ 16 + 16+ 18+ 38
26.75
Collette's work
26 +3864 - 32
Daniel's work
26+31+39 + 30+ 16+ 18+ 38
198 - 28.29
Lora's work
30+ 16 - 46 - 23

Answer 1

Ashrita

Explanation:

When you are finding the mean of some numbers you are meant to add all the numbers then divide by the amount of numbers

Answer 2

Ashrita

Explanation:

The mean of any set of data is found by finding the summation of all the values in the set of data then dividing it by the number of entries in the data.

Mean=Σfx/Σf

Σf=26+31+39+30+16+16+18+38= 214

Σf= 8= the number of entries.

Mean=214/8=26.75

Ashrita's work was correct.