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Chapter 2: Q. 2.2 (page 70)

The following data show the distances (in miles) from the homes of off-campus statistics students to the college. Create a stem plot using the data and identify any outliers:

0.5;0.7;1.1;1.2;1.2;1.3;1.3;1.5;1.5;1.7;1.7;1.8;1.9;2.0;2.2;2.5;2.6;2.8;2.8;2.8;3.5;3.8;4.4;4.8;4.9;5.2;5.5;5.7;5.8;8.0

Short Answer

Expert verified

The stem plot of the data is,

Stemleaf

0|571|122335577892|02568883|584|4895|25788|0.

We may deduce that the distribution is uni-modal and that the modal point is in the 1's interval.
There is also an increase trend at the 5's interval.

Step by step solution

01

Given

Here we have

0.5;0.7;1.1;1.2;1.2;1.3;1.3;1.5;1.5;1.7;1.7;1.8;1.9;2.0;2.2;2.5;2.6;2.8;2.8;2.8;3.5;3.8;4.4;4.8;4.9;5.2;5.5;5.7;5.8;8.0

02

Explanation

We've been provided 30data points to work with.
Thisinformationwillbeusedtocreateastemandleafplot.
Thestemandleafplotshowsthesummaryofthedataandmakesitsimpletoseetheformofthedistributionaswellaswherethefrequencyishighest.
To make sense of the data, we divide it into stem and leaf data, where 1|5equals 1.5and 0|9equals .
0.9So, we can observe that the data has the maximum frequency at 1's interval.

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