Question

refer to the table summarizing service times (seconds) of a fast - food restaurant. how many individuals are included in the summary? (type a whole number.) is it possible to identify the exact values of all of the original service times? (type a whole number.) the data values in each class could take on any value between the class limits, inclusive. a. no. the data values in each class could take on any value between the class limits, inclusive. b. no. the frequency distribution tells nothing about the data values that fall below the lowest class limit or above the highest class limit. c. yes. the data values in each class are equal to the corresponding class midpoint. d. yes. the data values in each class are spread evenly across the full length of the class.

Explanation:

Step1: Find the total number of individuals

To find the total number of individuals included in the summary, we sum up the frequencies of all classes. The frequencies are 8, 21, 16, 3, and 6 for the classes 60 - 119, 120 - 179, 180 - 239, 240 - 299, 300 - 359 respectively.
$8 + 21+16 + 3+6$

Step2: Calculate the sum

$8+21 = 29$, $29+16=45$, $45 + 3=48$, $48+6 = 54$

Step3: Analyze the possibility of identifying exact values

In a frequency - distribution table, the data values in each class could take on any value between the class limits (inclusive). The frequency distribution only tells us how many data points fall within each class interval, not the exact values of the individual data points. So it is not possible to identify the exact values of all of the original service times.

Answer:

The number of individuals included in the summary is 54. The answer to the question "Is it possible to identify the exact values of all of the original service times?" is A. No. The data values in each class could take on any value between the class limits, inclusive.