Question

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for the class 16–23, the width is 7.
true
false

question 3

what are the boundaries of the class 12-16?
a. 11.5 and 16.5
b. 12 and 16
c. 4
d. 10 and 18

Explanation:

First Question (True/False about class width)

Step1: Recall class width formula

Class width is calculated as upper class limit - lower class limit. For the class 16–23, upper limit is 23, lower limit is 16.

Step2: Calculate class width

$23 - 16 = 7$. So the statement is True.

To find the class boundaries, we use the formula: lower boundary = lower class limit - 0.5, upper boundary = upper class limit + 0.5. For the class 12 - 16, lower class limit is 12, upper class limit is 16.
Lower boundary: $12 - 0.5 = 11.5$
Upper boundary: $16 + 0.5 = 16.5$
So the boundaries are 11.5 and 16.5.

Answer:

True

Question 3 (Boundaries of class 12 - 16)