Select one answer A local chain of coffee shops is collecting data on the time e

Question

Select one answer A local chain of coffee shops is collecting data on the time each customer spends in line before placing an order. The frequency of each number of minutes spent waiting in line is given in a histogram for each of the four coffee shops 10 points IV Consider the variable time spent waiting in line. In which coffee shop is the standard deviation of time spent waiting in line zero? A. O Coffee shop I because the amount of time waiting in line was the same. B. O Coffee shop II because most of the data is clustered near the mean. C. OCoffee shop III because all customers spent the same amount of time waiting in line D. O Coffee shop IV because it has the least amount of data near the center

Explanation / Answer

Solution-1:

The correct answer is Option - C

Coffee Shop III has the standard deviation of the time spent waiting in the line is zero because all customers spent same amount of time waiting in the line

Solution-2:

Historgram I has the larget interquartile range.

Interquartile range = Third quartile - First quartile

From observing the histogram charts, we can see that Histogram I has the largest difference between third quartile observations and first quartile.

Hence, option-A is the correct answer

Solution-#:

Men has higher IQR for the number of expensive coffee beverages consumed than that of women.

There is less variability in the number of expensive coffee beverages consumed by women because the IQR is smaller.

Hence, option-A is the correct answer.

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