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CompTIA DA0-001 Exam - Topic 1 Question 64 Discussion

Actual exam question for CompTIA's DA0-001 exam
Question #: 64
Topic #: 1
[All DA0-001 Questions]

Which one of the following would not normally be considered a summary statistic?

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Suggested Answer: A

Simply put, a z-score (also called a standard score) gives you an idea of how far from the mean a data point is. But more technically it's a measure of how many standard deviations below or above the population mean a raw score is. A z-score can be placed on a normal distribution curve.


by Leslee at Nov 21, 2025, 05:21 PM

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Corinne
18 hours ago
The mean is the most common summary statistic.
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Beatriz
6 days ago
Wait, I thought z-scores summarized data too?
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Timothy
11 days ago
I agree, the mean, variance, and standard deviation are all summary stats.
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Florinda
16 days ago
A z-score is definitely not a summary statistic.
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Dorathy
21 days ago
The z-score is the answer, no doubt. It's like the black sheep of the summary statistic family. Everyone else is just chilling, and the z-score is like, "Look at me, I'm special!"
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Arminda
27 days ago
Haha, this question is a real head-scratcher. Next, they'll be asking us if the median is a summary statistic. What's next, the mode?
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Lavonna
1 month ago
Wait, are you telling me the standard deviation isn't a summary statistic? That's like the bread and butter of any data analysis!
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Diego
1 month ago
This question seems familiar; I feel like I had a similar one where we had to identify different types of statistics.
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Micheal
1 month ago
I remember practicing with mean, variance, and standard deviation, but I'm not entirely sure about the z-score being a summary statistic.
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Gail
2 months ago
I'm a little unsure about this one. The z-score seems different from the other options, but I want to double-check my understanding before answering.
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Carmela
2 months ago
Okay, I've got this. The z-score is a standardized score, not a summary statistic like the others listed. I'm confident that's the right answer.
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Sharan
2 months ago
The z-score is the odd one out here. The mean, variance, and standard deviation are all classic summary statistics, but the z-score is a different type of metric.
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Hoa
2 months ago
I think a z-score is more of a standardized value rather than a summary statistic, right?
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Tequila
2 months ago
I think the variance is the odd one out here. I mean, who needs to know how much the data points vary from the mean? Just give me the mean and standard deviation, and I'm good to go.
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Rebbecca
2 months ago
The z-score is definitely not a summary statistic. It's more like a fancy way to say "how many standard deviations away from the mean am I?"
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Alisha
3 months ago
I’m leaning towards z-score as the answer, but I could be mixing it up with something else we studied.
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Carin
3 months ago
Variance is a summary statistic, no doubt about it!
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Lisbeth
3 months ago
Hmm, this is a tricky one. I know the mean, variance, and standard deviation are all summary stats, but I'm not sure about the z-score. I'll have to think this through carefully.
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Julieta
3 months ago
I'm pretty sure the z-score is not a summary statistic, since it's a standardized score rather than a measure of central tendency or dispersion.
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