Question 2 Solution
You can use the stat mode on your calculator to determine the mean as 78.17.
Alternatively you can add 75 + 63 + 82 + 84 + 75 + 90 = 469
469÷6 = 78.17 = mean
The median is found by arranging the scores in ascending (or descending) order and taking the middle score.
The median for an even number of scores is the sum of the two middle scores divided by 2.
Median = (75 + 82)/2 = 78.5
The mode is the score that occurs most frequently. 75 occurs twice, other scores occur once so mode is 75.
The range is the difference between the highest and lowest score. 90 - 63 = 27
Summarising we have mean = 78.17; median = 78.5; mode = 75; range = 27; Highest is median.
B
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