Answer:
(IQR) Interquartile range = 74 - 57 = 17
Step-by-step explanation:
Arrange the data set from least to greatest. (which already is in a least to greatest form)
53, 61, 63, 72, 76
find the median (the middle number)
Median: 63
then find both lower and upper quartile:
Lower quartile: 53 + 61 = 114/2 = 57
Upper quartile: 72 + 76 = 148/2 = 74
Formula for the interquartile range:
(IQR) interquartile range: upper quartile - lower quartile = answer