To plot:Draw histogram with the give data.
Explanation of Solution
Given information:
A data set of number of text messages each person sends or receives during a week
The data is displayed as follows:
Number of SMS | Frequency |
10–19 | 5 |
20–29 | 3 |
30–39 | 5 |
40–49 | 0 |
50–59 | 6 |
Follow the steps to draw a histogram.
1. Draw and label horizontal and vertical axis as shown below.
2. Show the intervals from frequency table on the horizontal axis and an interval of 1 on the vertical axis.
3. For each interval draw a bar whose height is given by the frequency.
Histogram gives a better presentation of the data. Above fig tells that 10-19 messages and 40-49 messages are common among class mates to receive or send in a month.
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