Book 1
17
Book 2
20
Book 3
35
Book 4
19
Book 5
27
Book 6
30
Book 7
19
Book 8
26
Book 9
32
Book 10
23
Book 11
15
Book 12
28
Book 13
31
Book 14
19
Book 15
24
you will have to find the mean
median
mode and
range
Mean: To find the mean, we add up all the numbers and divide by the total number of numbers.
Mean = (17+20+35+19+27+30+19+26+32+23+15+28+31+19+24)/15
Mean = 23.4
Median: To find the median, we need to arrange the numbers from least to greatest and then find the middle value. If there are two middle values, we take the average of the two.
Arranged data: 15, 17, 19, 19, 19, 20, 23, 24, 26, 27, 28, 30, 31, 32, 35
Median = 26
Mode: The mode is the value that appears the most often.
Mode = 19
Range: To find the range, we subtract the smallest value from the largest value.
Range = 35 - 15
Range = 20