Question

The table below shows the scores on a science test.

John
75
Brett
80
Elizabeth
90
Cindy
100
Jake
75 Kenji
85
Rick
80 Joy
80
Raul
90 Suni
85
find the range, mean,median, and mode for the scores . Round to the nearest tenth when necessary

Answer 1

The range is 25, the mean is 85, the median is 85, and there is no mode.

Explanation:

To find the range, we need to subtract the lowest score from the highest score:

Range = 100 - 75 = 25

To find the mean, we add up all the scores and divide by the total number of scores:

Mean = (75 + 80 + 90 + 100 + 75 + 85 + 80 + 90 + 85) / 9 = 85

To find the median, we need to put the scores in order from lowest to highest:

75, 75, 80, 80, 85, 85, 90, 90, 100

Since there are nine scores, the median is the middle score, which is:

Median = 85

To find the mode, we need to find the score that appears most often. In this case, there are two scores that appear twice (75 and 80), and the rest appear only once. Therefore, there is no mode.

So the range is 25, the mean is 85, the median is 85, and there is no mode.