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Author Question: The descriptive statistics for the age differences (husband age wife age) from a sample of 100 ... (Read 59 times)

camac77

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on: Feb 26, 2023

Question 1

The curve shown here is a visual depiction of the distribution of random variableX. The shaded region is:


◦

the frequency of 2 and 3.


◦

P(2 ≤X≤ 3).


◦

the proportion of readings in the distribution that exceed 2.


◦

P(X≤ 3).



Question 2

The descriptive statistics for the age differences (husband age – wife age) from a sample of 100 married couples are shown here.



Based on these statistics, do the data appear to be normally distributed?


◦

Yes, because the mean and the median are roughly the same.


◦

Yes, because the value of IQR/sis roughly 1.3.


◦

No, because the value of IQR/sis less than 1.3.


◦

No, because the mean and the median are the same.

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Marked as best answer by camac77 on Feb 26, 2023

wangyichun

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Reply #1 on: Feb 26, 2023
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camac77

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Reply 2 on: Feb 26, 2023
Thanks for the timely response, appreciate it

FergA

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Reply 3 on: Yesterday
Wow, this really help

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