The cost of one serving of peanut butter ( in cents) for a random sample of 19 jars of peanut butter was found to be:
22
|
27
|
32
|
26
|
26
|
19
|
16
|
26
|
14
|
21
|
20
|
21
|
20
|
17
|
12
|
32
|
17
|
9
|
16
|
|
a) Give the five-number summary( low, q1, median, Q3, high).
b) Calculate the IQR