Question

find class boundaries, midpoint, and width for the class.
129-149
part: 0 / 3
part 1 of 3
the class boundaries for the class are - .

Explanation:

Step1: Find lower class boundary

Subtract 0.5 from lower limit: $129 - 0.5 = 128.5$

Step2: Find upper class boundary

Add 0.5 to upper limit: $149 + 0.5 = 149.5$

Step3: Calculate midpoint

Average of class limits: $\frac{129 + 149}{2} = 139$

Step4: Compute class width

Subtract lower limit from upper limit: $149 - 129 = 20$

Answer:

Class boundaries: 128.5-149.5
Midpoint: 139
Class width: 20