Question

Construct a stem-and-leaf plot for each of the following sets of data.a) Minutes on the bus to school:8, 12, 18, 10, 13, 24, 30, 19, 22, 24, 19, 14, 17, 32, 21 b) Minutes studying:54, 63, 52, 54, 21, 39, 48, 55, 32, 68, 53, 44, 49, 36, 27

Answer 1

a)

• Data: 8,,, 12,, ,18, 10, 13, 24, 30, 19, 22,, ,24, 19,, ,14, 17,, ,32,, ,21

Organizing the data:

• 0: 8

,

• 1: 0, 2, 3, 4, 7, 8, 9, 9

,

• 2: 1, 2, 4, 4,

,

• 3: 0, 2

Plotting:

b)

• Data: 54,, 63, ,52, 54, 21,, ,39, 48,, ,55,, ,32,, 68, ,53, 44, 49,, ,36,, ,27

Organizing the data:

• 2: 1, 7

,

• 3: 2, 6, 9

,

• 4: 4, 8, 9

,

• 5: 2, 3, 4, 4, 5,

,

• 6: 3, 8

Plotting: