Chapter 4, Problem 6E

(a)

To determine

To find: that the distribution of this variables to be uniform, bimodal or unimodal, symmetric or skewed.

Explanation of Solution

It is bimodal and skewed right. There would be two distinct groups of few league players and spectators. The spectators’ ages would range as parents and grandparents might be present, therefore it is more likely to be skewed right.

(b)

To determine

To find: that the distribution of this variables to be uniform, bimodal or unimodal, symmetric or skewed.

Explanation of Solution

It is unimodal and skewed right. Most of the people would have 0 or 1 sibling, with a some outliers who have larger families.

(c)

To determine

To find: that the distribution of this variables to be uniform, bimodal or unimodal, symmetric or skewed.

Explanation of Solution

It is unimodal and symmetric. Most of the college- age males should never pulse rates close to the national mean for males their age. Although, there may be a second mode is athletes are present in the data.

(d)

To determine

To find: that the distribution of this variables to be uniform, bimodal or unimodal, symmetric or skewed.

Explanation of Solution

It is uniform and not skew. Suppose that the die is not loaded, each face should come up about the same number of times.