Question A).
Sorted Data Set:
90, 55, 50, 45, 42, 40, 40, 37, 35, 32, 30, 8 = 504/12 = 42
Find Mean, Median, and Mode, Range:
Mean (Average) - 42
Median (Middle) - (40 + 40)/2 = 40
Range ( Biggest - Smallest) - 82
Mode (Most Common) - 40, 40 which appeared two times
Largest - 90 (90 - 8) = 82
Smallest - 8
Sum = 504/12 = 42
Count = 12
The mean is the average of all data in set.
The median is the value in a set which is most close to the middle of a range.
The mode is the value which occurs most frequently in a data set.
The range is the difference between the largest and the smallest data in a data set.
Hope that helps!!!!!!