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Graphing Data

Problems

Histograms

How to Cite This SparkNote

The following is a list of the amount of time (in minutes) that it takes various students to get to school by bus:

10 14 9 14 25
45 13 21 18 12
7 16 35 30 12
26 24 19 11 20
Use this data for the following problems.

Problem : What is the (mean) average number of minutes it takes to get to school by bus, according to the data?

19.05 minutes

Problem : Make a frequency distribution table for the data.

We cover the range with five intervals of length ten minutes:
Intervals (in minutes) Frequency
0 - 9 2
10 -19 10
20 - 29 5
30 - 39 2
40 - 49 1
Total 20

Problem : What is the median number of minutes it takes to get to school by bus, according to the data?

17

Problem : Make a histogram for the data, using the frequency distribution table.

Minutes Spent on the Bus

Problem : In which time interval do the most students fall? The least?

10 - 19 ; 40 - 50 .

Problem : Do more students spend less than 10 minutes on the bus or 30 or more minutes on the bus?

30 or more minutes.

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