Question

Martina chose a random sample of 10 bags of candy from two different brands, A and B. All bags in the sample are the same size. Martina counts the number of candy pieces in each bag and plots the results on two dot plots.

Answer 1

A dot plot is shown. The title of the plot is Brand A. The line is numbered with tick marks at 40, 45, 50, 55, 60, 65, and 70 and is labeled Number of Candy Pieces. There are 2 dots at 52, 1 dot at 53, 2 dots at 55, 1 dot at 56, 2 dots at 57, and 2 dots at 62.

A dot plot is shown. The title of the plot is Brand B. The line is numbered with tick marks at 40, 45, 50, 55, 60, 65, and 70 and is labeled Number of Candy Pieces. There is 1 dot at 44, 1 dot at 46, 2 dots at 52, 1 dot at 55, 1 dot at 62, 1 dot at 65, 2 dots at 67 and 1 dot at 69

Based on the plots, which statement is a valid comparison of the number of candies in the bags of the two brands?

A. The number of candies in the bags from brand B is greater and more consistent than the number of candies in the bags from brand A.

B. The number of candies in the bags from brand B is greater and less consistent than the number of candies in the bags from brand A.

C. The number of candies in the bags from brand B is fewer and more consistent than the number of candies in the bags from brand A.

D. The number of candies in the bags from brand B is fewer and less consistent than the number of candies in the bags from brand A.

Answer 2

I know this question has been here for a LONG time, but if you're still around, could you clarify if the tick marks are going vertical or horizontal?

Answer 3

Looking at the plots, we can see that the number of candies in Brand A bags seems to be about 55 give or take about 5 candies or so.

The number of candies in Brand B bags appears to be about 55-60 give or take 10 candies.

Intuitively, we can tell that Brand B is LESS consistent than Brand A, since Brand B's candy numbers are "all over the place." But, at the same time, it looks like Brand B bags tend to have more candy than Brand A.