Question

1. the dot plot shows the weight, in grams, of several different rocks. select all the terms that describe the shape of the distribution.

a. bell - shaped
b. bimodal
c. skewed
d. symmetric
e. uniform

Explanation:

A bell - shaped distribution is symmetric and has one peak. A bimodal distribution has two peaks. A skewed distribution is not symmetric. A symmetric distribution can be folded along a central line with the two halves matching. A uniform distribution has all data values having approximately the same frequency. Looking at the dot - plot, there are two peaks (at 0.27 and 0.31), so it is bimodal. Also, it is not symmetric (not bell - shaped or uniform), and not skewed in a clear left or right direction.

Answer:

B. bimodal