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Chapter 2: Q 39. (page 109)

Travel time (1.2) The dot plot below 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 shape, center, and spread of the distribution. Are there any outliers?

Short Answer

Expert verified

80and 90appear to be outliers, Shape: right-skewed, Center: 15, Spread: 15

Step by step solution

01

Step 1. Given

02

Step 2. Concept

  • Shape
  • Center
  • Spread
03

Step 3. Explanation

Because the majority of the data points are to the left and the tail is to the right, the shape is right-skewed.

Because the majority of the dots in the dot-plot appear above 15, the center number is 15

Spread 15, because the gap between the mean and the graph's shortest endpoint is roughly 15(0).

Outliers; There are outliers since the dot-plot has wide gaps in it. Outliers are dots that are far away from the rest of the dots, therefore80and 90appear to be outliers. Therefore,80and 90appear to be outliers, Shape: right-skewed, Center: 15, Spread: 15

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