A positively skewed distribution_________

a. is symmetric.

b. has a tail pointing to the left.

c. is also positively skewed.

d. has a tail pointing to the right.

In deciding on the number of stems to use in a stem and leaf display,

a. you should disregard the frequencies of the data.

b. you should normally make all of the stems the same width.

c. you should always break the stems into 5 stems per every 10 units.

d. you should generally use 10 stems in all.

Which of the following distributions can be symmetric?

a. normal

b. bimodal

c. all of those can be symmetric

d. unimodal