Chapter 5.2, Problem 5.33E

(a)

To determine

To identify for each of the graphs that it is high or low bias and also high or low variability and explain.

Answer to Problem 5.33E

 High bias, high variability.

Explanation of Solution

 High bias, high variability.

Graph (a) shows high bias because the average sample statistic is not near the population parameter. The graph also shows high variability because all of the sample statistics are very spread out.

(b)

To determine

To identify for each of the graphs that it is high or low bias and also high or low variability and explain.

Answer to Problem 5.33E

Low bias, low variability.

Explanation of Solution

Low bias, low variability.

Graph (b) shows low bias because the average sample statistic is very close to the population parameter. The graph also shows low variability because the sample statistics are very close to each other.

(c)

To determine

To identify for each of the graphs that it is high or low bias and also high or low variability and explain.

Answer to Problem 5.33E

Low bias, high variability.

Explanation of Solution

Low bias, high variability.

Graph (c) shows low bias because the average sample statistic is very close to the population parameter. However, the graph shows high variability because the sample statistics are very spread out.

(d)

To determine

To identify for each of the graphs that it is high or low bias and also high or low variability and explain.

Answer to Problem 5.33E

High bias, low variability.

Explanation of Solution

High bias, low variability.

Graph (d) shows high bias because the average sample statistic is not near the population parameter. However, the graph shows low variability because the sample statistics are very close to each other.