Question

the frequency distribution shown is constructed incorrectly.
class frequency
26-29 4
30-33 3
34-36 8
37-40 5
41-44 7
select all applicable mistakes in the frequency distribution.
□ class width is not uniform
□ a class is omitted
□ class limits overlap

Explanation:

Step1: Calculate class widths

Width of 26-29: $29-26+1=4$; 30-33: $33-30+1=4$; 34-36: $36-34+1=3$; 37-40: $40-37+1=4$; 41-44: $44-41+1=4$.

Step2: Check for gaps/omissions

End of 29 to start of 30: no gap; end of 33 to start of 34: no gap; end of 36 to start of 37: no gap; end of 40 to start of 41: no gap. No omitted classes.

Step3: Check for overlapping limits

Classes are 26-29,30-33,... No overlaps (e.g., 29 < 30).

Answer:

class width is not uniform