To solve the shape of distribution decide.
Answer to Problem 22E
Histogram b is skewed to the right and box-and-whisker plot a is skewed to the right.
Histogram c is skewed to the left and box-and-whisker plot b is skewed to the left.
Histogram a is symmetric and box-and-whisker plot c is symmetric.
Explanation of Solution
Given information: Shape of distribution
Calculation:
- If the distribution of data is skewed to the left, the mean is less than the median, which is often less than the mode.
(mean < median < mode)
If there is an outlier in the data then median best describes the center and variation of the data otherwise mean best describes the center and variation of the data.
- If the distribution of data is skewed to the right, the mode is often less than the median, which is less than the mean.
(mean > median > mode)
If there is an outlier in the data then median best describes the center and variation of the data otherwise mean best describes the center and variation of the data.
- If the distribution of data is symmetric, the mode = the median = the mean
Histogram b is skewed to the right and box-and-whisker plot a is skewed to the right.
Histogram c is skewed to the left and box-and-whisker plot b is skewed to the left.
Histogram a is symmetric and box-and-whisker plot c is symmetric.
Chapter 11 Solutions
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