Suppose a charity received a donation of 12.7 million. If this represents 29% of the charity's donated funds, what is the total
1 answer:
The total amount of its donated funds is 43.
Given,
In the question:
A charity received a donation of 12.7 million.
If this represents 29% of the charity's donated funds.
To find the total amount of its donated funds.
Now, According to the question:
Based on the given conditions:
Received donation is = 12.7 million
Charity Funds = 29%
Formulate;
12.7 ÷ 29%
12.7/29%
= 12.7/0.29
Multiply both the numerator and denominator with the same integer
= 1270/29
= 43
Hence, The total amount of its donated funds is 43.
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So we can find this probability:
And then since the interest is the probability that the mean diameter of the sample shafts would differ from the population mean by more than 0.3 inches using the complement rule we got:
Step-by-step explanation:
Let X the random variable that represent the diamters of interest for this case, and for this case we know the following info
Where and
We can begin finding this probability this probability
For this case they select a sample of n=79>30, so then we have enough evidence to use the central limit theorem and the distirbution for the sample mean can be approximated with:
And the best way to solve this problem is using the normal standard distribution and the z score given by:
And we can find the z scores for each limit and we got:
So we can find this probability:
And then since the interest is the probability that the mean diameter of the sample shafts would differ from the population mean by more than 0.3 inches using the complement rule we got: