NAHQ CPHQ Exam - Topic 1 Question 87 Discussion

Actual exam question for NAHQ's CPHQ exam

Question #: 87
Topic #: 1

[All CPHQ Questions]

The median is defined as the

Adifference between a data item and the mean of a data set.

Bmost frequently occurring value in a data set.

Carithmetic average of a data set.

Dnumber thatdivides an ordered data set into two equal parts.

Show Suggested Answer

Suggested Answer: D

The median is a measure of central tendency in statistics that represents the middle value of an ordered data set.

Data Set Ordering: To find the median, the data set must first be arranged in ascending or descending order.

Middle Value Identification: The median is the value that divides the data set into two equal parts, with 50% of the data points lying below it and 50% above it. If the number of observations is odd, the median is the middle number; if even, it is the average of the two middle numbers.

Robustness: Unlike the mean, the median is not affected by extreme values (outliers), making it a more robust measure of central tendency in skewed distributions.

NAHQ Study Guide on Statistical Methods in Quality Improvement.

Quality Management in Health Care, Chapter on Measures of Central Tendency.

by Earleen at Nov 19, 2025, 09:33 PM

Limited Time Offer

25%

Off

Get Premium CPHQ Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Ria

1 month ago

I feel confident with D. It’s clear!

upvoted 0 times

...

Rex

2 months ago

B is mode, not median. D is correct!

upvoted 0 times

...

Marica

2 months ago

Definitely D! It’s all about equal parts.

upvoted 0 times

...

Corrina

2 months ago

Agreed, D makes the most sense.

upvoted 0 times

...

Margery

2 months ago

Just to clarify, the median is the middle value when ordered.

upvoted 0 times

...

Pura

2 months ago

Totally agree with D, it's the definition we learned in class.

upvoted 0 times

...

Delmy

2 months ago

Wait, is it really D? I always get confused with these terms.

upvoted 0 times

...

Chandra

3 months ago

I thought it was B at first, but D makes more sense.

upvoted 0 times

...

Margurite

3 months ago

It's definitely D! The median splits the data.

upvoted 0 times

...

Leigha

3 months ago

Haha, I bet the person who wrote this question was trying to trick us with those other options!

upvoted 0 times

...

Stephanie

4 months ago

The median is the middle value, not the average. That's option C).

upvoted 0 times

...

Nada

4 months ago

I always get the median and the mode mixed up. This is a good reminder to review those definitions.

upvoted 0 times

...

Walker

4 months ago

D) is the correct answer. The median is the middle value in an ordered data set.

upvoted 0 times

...

Zena

4 months ago

I feel like I’ve seen a similar question before, and I’m pretty sure the median is the number that divides the data set, which makes me lean towards D.

upvoted 0 times

...

Audry

4 months ago

I keep mixing up the median with the mode and mean. I thought the median was the most frequently occurring value, but that sounds like option B.

upvoted 0 times

...

Alecia

4 months ago

I remember practicing a question where we had to find the median, and it was definitely about dividing the data set. So, I think D is correct.

upvoted 0 times

...

Wilburn

5 months ago

I think the median is related to the middle value, but I'm not sure if it's option D or something else.

upvoted 0 times

...

Henriette

5 months ago

Hmm, I'm not 100% sure on this one. I know the median has something to do with the middle of the data set, but I'm not certain which of these options is the correct definition. I'll have to think it through carefully.

upvoted 0 times

...

Sunshine

5 months ago

The median is the middle value when the data is arranged in order, so it has to be D. That's a key concept we covered in class, so I feel good about selecting that answer.

upvoted 0 times

...

Estrella

5 months ago

Wait, I'm a little confused here. Is the median the same as the mean? Or is it the most common value? I need to review my notes on measures of central tendency to figure this out.

upvoted 0 times

...

Georgene

6 months ago

I think the median is D. It splits the data.

upvoted 0 times

...

Shawnda

6 months ago

I thought it was B at first.

upvoted 0 times

...

Gianna

6 months ago

Okay, I know the median is a measure of central tendency, so it has to be one of these options. I'm pretty confident it's D, since that matches my understanding of what the median is.

upvoted 0 times

...