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blondinia [14]
3 years ago
6

The mean height of a group of 500 nonsmoking college students is 74 inches and the standard deviation is 5 inches. What is the p

robability that a random sample of 25 students from this group, the average height will be between 73 and 75 inches? (Answer in four decimal places)
Mathematics
1 answer:
Brrunno [24]3 years ago
3 0
500 (non smokers)÷ 25(random students out of the group)= 20 inches. 20 inches ÷ 74 inches= 3.70
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  B)  1684 billion barrels

  C) 79.17 years

Step-by-step explanation:

<h3>A)</h3>

Reserves start at 1900 billion barrels and decrease by 24 billion barrels each year. The value for t=0 is 1900; the value for t=1 is 24 less.

  R = 1900 -24t

__

<h3>B)</h3>

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<h3>C)</h3>

The reserve will be 0 when ...

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