Question

The following data give the number of keyboards assembled at the Twentieth century electronics company for a sample of 25 days. 45, 52, 48,41,56,46,44,42,48,53,51,53,51,48,46,43,52,50,54,
47,44,47,50,49,52

a.calculate the values of the three quartiles and the interquartile range

b. Find the percentile rank of 50

7 years ago