Your answer for this problem is 1297.2 km
Answer:
86.7%
Step-by-step explanation:
For questions regarding values related to a normal distribution, a suitable calculator is required. Numerous calculators, apps, web sites, and spreadsheets are capable of answering this question.
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One standard deviation above the mean is 327 +27 = 354, so the value is expected to be slightly more than 50% +34% = 84%. It is no surprise, then, that a calculator tells you 86.7% of the data is below 857.
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<em>Additional comment</em>
The "empirical rule" tells you 68% of the area is within 1 standard deviation of the mean. The distribution is symmetrical, so half that, 34%, is between the mean and 1 standard deviation above the mean. Of course, 50% of the data is below the mean.
Answer:
a) yes we should get suspicious
b)
smallest percentage to like all three sports= 60
Step-by-step explanation:
Let the total professors be =100
n(tennis) = 60
n( bridge) = 65
n( chess)= 50
n( T U B) = 45, n(BU C) = 45, n(T UC)=45
n( T U B U C)= n(T) + n(B) + n(C) - n( T U B) - n( BU C) - n(TUC) +
100 = 60 + 65 + 50 - 45-45-45 +
= 60
Therefore,
a) yes we should get suspicious
b)
smallest percentage to like all three sports= 60
The square root of 1,000,000 is 1,000.
hope it helps.