Which is the better buy? 17-ounce jar of pickles for $8.84 2-pound jar of pickles for $25,28
2 answers:
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Answer:
0%
Step-by-step explanation:
We have the following information:
mean (m) = 208 days
standard deviation (s) = 15 days
We have that the z value would be:
z = (x - m) / sd
replacing we have:
z = (308 - 208) / 15
z = 6.66
However,
P (x> 308) = 1 - (x <308)
P (x> 308) = 1 - (z <6.66)
if we look for this value of z in the table we assume that it is 1, since the table reaches 3 and the value is 1. Therefore:
P (x> 308) = 1 - 1
P (x> 308) = 0
Which means that the probability is 0%, therefore it is a very unusual pregnancy.
Answer:
Given that,
A wealthy businessman invests $10,000.
It expects a 6.75% rate of return annually.
To find: the number of years it take the investment to reach at least $15,000 in value.
Explanation:
we know that,
Amount invested at r% rate of interest after t years is,
where P is the initial investment.
Substitute the values we get,
we get,
we get,
Calculating this we get,
Round to the nearest number of years.
we get,
6 years will it take the investment to reach at least $15,000 in value.
Answer is: 6 years will it take the investment to reach at least $15,000 in value