Question

saltare is a maker of high - end apparel for women. for market research one afternoon, saltares sales team surveyed adult women at a busy airport on the number of blouses they own. the histogram below summarizes the data. use the histogram to answer each of the questions. (a) how many adult women in the survey own from 20 to 28 blouses? (b) how many adult women in the survey own 29 or more blouses? (c) what is the class width?

Explanation:

Step1: Identify frequency for 20 - 28 range

Read the height of the bar for the 20 - 28 class from the histogram. Let's assume the frequency is 5 (you need to read the actual height from the real - histogram).

Step2: Identify frequencies for 29 or more

Sum the frequencies of the classes 29 - 37, 38 - 46, 47 - 55. Let's assume the frequencies of these classes are 3, 4, 6 respectively (you need to read the actual heights from the real - histogram). The sum is \(3 + 4+6=13\).

Step3: Calculate class width

For a class interval \(a - b\), the class width is \(b - a\). For all the classes (e.g., 11 - 19, 20 - 28 etc.), the class width is \(19 - 11=8\), \(28 - 20 = 8\) etc.

Answer:

(a) [Read the frequency for 20 - 28 from the histogram]
(b) [Sum the frequencies of 29 - 37, 38 - 46, 47 - 55 from the histogram]
(c) 8