Question

student grades on a chemistry exam were: 79, 78, 76, 82, 86, 50, 79, 81, 84, 99 part (a) construct a stem - and - leaf plot of the data. (use the tens digit as the stem and the ones digit as the leaf. enter your answers from smallest to largest, separated by spaces. enter none for stems with no leaves.) 5 6 enter numbers separated by spaces. 7 8 9

Explanation:

Step1: Analyze stem 5

The data point with tens digit 5 is 50. So the leaf for stem 5 is 0.

Step2: Analyze stem 6

There are no data points with tens digit 6, so we enter NONE.

Step3: Analyze stem 7

Data points with tens digit 7: 79, 78, 76, 79. The ones digits are 9, 8, 6, 9. Sort them: 6, 8, 9, 9.

Step4: Analyze stem 8

Data points with tens digit 8: 82, 86, 81, 84. The ones digits are 2, 6, 1, 4. Sort them: 1, 2, 4, 6.

Step5: Analyze stem 9

Data point with tens digit 9: 99. The ones digit is 9.

Answer:

For stem 5: 0
For stem 6: NONE
For stem 7: 6 8 9 9
For stem 8: 1 2 4 6
For stem 9: 9