Page 278 - ABCTE Study Guide_Neat

Step by Step:

1. Decide on the number of classes, or bins. The width of the intervals depends on these. The
table below shows 6 classes.
2. Now find the widths of the intervals: Widths of five years are shown on the table below.

Class Frequency

42 - 46 5

47 - 51 6
52 - 56 8

57 - 61 7

62 - 66 5

67 - 71 4

This table shows that most people in this club are between 52 and 56 years old.

Here’s a histogram of the data in the frequency table:

Question

In a stem-and-leaf plot of the data that is displayed in the histogram below, how many leaves would a
stem of 5 have?