saltare is a maker of high - end apparel for women. for market research one afternoon, saltares sales team…

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.\n(a) what is the class width?\n(b) how many adult women in the survey own from 38 to 46 blouses?\n(c) how many adult women in the survey own 37 or fewer blouses?

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.\n(a) what is the class width?\n(b) how many adult women in the survey own from 38 to 46 blouses?\n(c) how many adult women in the survey own 37 or fewer blouses?

Answer

Explanation:

Step1: Calculate class width

For the class 11 - 19, class width = 19 - 11=8. For 20 - 28, 28 - 20 = 8. For 29 - 37, 37 - 29 = 8. For 38 - 46, 46 - 38 = 8. So the class width is 8.

Step2: Find number of women with 38 - 46 blouses

From the histogram, the frequency of the 38 - 46 class is 4. So 4 adult women own from 38 to 46 blouses.

Step3: Find number of women with 37 or fewer blouses

Sum the frequencies of the 11 - 19, 20 - 28 and 29 - 37 classes. 2+8 + 2=12.

Answer:

(a) 8 (b) 4 (c) 12