Question

The following dot plot represents the litter sizes of a random sample of labrador retrievers.

Calculate the mean, median, and mode for this set of data.
Calculate the range, interquartile range, and mean absolute deviation (rounded to the nearest hundredth) for this set of data. For the mean absolute deviation, do not round the mean.
Make two inferences about the litter size of labrador retrievers.

Answer 1

The mean, median, and mode for this set of Data is:

Mean =7.78

Median = 8

Mode: 7

The range, Interquartile range, and the 'MAD' for this set of data is:

Range = 9

Interquartile range: = 2

MAD: 6.5 (not rounded to the nearest 100th)

Make two inferences about the litter size of Labrador retrievers.

The range size of Labrador retrievers is approximately 4 times larger than the interquartile range. The mean is approximately two times more than the MAD.