0.7<span> and </span>0.70<span> are two ways to say 7/10
hope this helps!</span>
A) The empirical rule tells you the probability of being within 1 standard deviation of the mean is 68%.
b) The probability that the sample mean falls within 3 standard deviations* of the mean is 99.7%.
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* The standard deviation of the sample mean is 1/√9 = 1/3 of the standard deviation of an individual sample. Hence the same limits (90-110) now cover 3 standard deviations of the sample mean.
Answer:
no close but he is not he drinks 4.5 a year
Step-by-step explanation:
The correct answer is B) 117
