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Chapter 2: Q 39. (page 109)

Travel time (1.2) The dot-plot displays data on students鈥� responses to the question 鈥淗ow long does it usually take you to travel to school?鈥� Describe the distribution.

Short Answer

Expert verified

Shape: The distribution is skewed to the right.

Center: The middle value is estimated as the center of the distribution and the middle value between both the values is 12.5

Spread: This depicts the range of data values from 0 and 90

Step by step solution

01

Given information

02

Concept

The amount of data points in a data set are visually grouped by the value of each point in a dot plot.

03

Explanation

Shape:

The majority of the dots in the dot plot are to the left, with a tail of more uncommon dots to the right. As a result, the distribution is slightly skewed to the right.

Center:

Most dots are found between the ages of 10and 15 As a result, the distribution's peak appears to be somewhere between 10 and 15 The center of the distribution is then approximated as the middle value, and the middle value between both values is12.5

Unusual features:

The most significant difference appears to be between the ages of 60 and 80 There appear to be a few outliers due to the wide gaps in the dot plot.

Spread:

The left-most dot in the dot plot appears to be at 0 while the right-most dot appears to be at 90 As a result, this shows the range of data values between 0 and 90

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