Author Question: The lengths of the reigns of 50 British monarchs (in years) are summarized with the following ... (Read 52 times)

moore.cailinf · **on:** Feb 26, 2023

Question 1

The IQ curve is normal, with a mean of 100 and a standard deviation of 15. If “normal” IQ is defined as a score within 1 standard deviation of the mean, approximately what percentage of the people who take IQ tests are considered as having “normal” intelligence?

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10%

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50%

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70%

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90%

Question 2

The lengths of the reigns of 50 British monarchs (in years) are summarized with the following five-number summary:

x_min= 0,Q₁= 6,_{\(\style{font-family:Times New Roman;}{\overset˜x}\)}= 15.5,Q₃= 24,x_max= 63

If the maximum of 63 years is accidentally recorded as 630 years, how will this affect the median?

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The median will increase.

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The median will decrease.

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The median will be unchanged.

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It is impossible to determine without having the complete data set.

StephaniaF · **Reply #1 on:** Feb 26, 2023

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