use the frequency histogram to complete the following parts. (a) determine the number of classes. (b)…

use the frequency histogram to complete the following parts. (a) determine the number of classes. (b) estimate the greatest and least frequencies. (c) determine the class width. (d) describe any patterns with the data. (a) there are classes. (type a whole number.)

use the frequency histogram to complete the following parts. (a) determine the number of classes. (b) estimate the greatest and least frequencies. (c) determine the class width. (d) describe any patterns with the data. (a) there are classes. (type a whole number.)

Answer

Explanation:

Step1: Count bar - groups

Count the number of distinct bar - groups in the histogram to find the number of classes. There are 5 distinct bar - groups.

Step2: Identify frequencies

The height of each bar represents the frequency. The lowest bar has a height of approximately 50 (least frequency) and the tallest bar has a height of approximately 250 (greatest frequency).

Step3: Calculate class width

The class intervals are (34 - 44.9), (44.9 - 54.9), (54.9 - 64.9), (64.9 - 74.9), (74.9 - 84.9). Subtract the lower - limit of a class from the lower - limit of the next class. For example, (44.9−34 = 10.9\approx10).

Step4: Analyze data pattern

The data appears to be right - skewed. The majority of the data is concentrated in the lower classes, and there are fewer data points in the higher classes.

Answer:

(a) 5 (b) Greatest frequency: 250, Least frequency: 50 (c) 10 (d) The data is right - skewed.