Chapter 4, Problem 9E

(a)

To determine

To find: the percentage of these vineyards is under 60 acres.

Explanation of Solution

Given:

  

By seeing this histogram there are two bars of the histogram which displays the vineyards under 60 acres. First and second bars heights are 15 and about 13 vineyards. So the addition of vineyards under 60 acres in size is approximately 28 and total 36 numbers of vineyards. Hence,

  $\frac{28}{36}\times 100=77.78\%$

77.78% of these vineyards is under 60 acres.

(b)

To determine

To Explain: a brief description on this distribution.

Explanation of Solution

Given:

  

By seeing this distribution, it is observed that this is unimodal and skewed to right. The mode is at around 0 to 60. It seems there is one outlier. The spread is between 0 and 240. Almost all the vineyards are under 90 acres.