The answer is 15 I’m pretty sure
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Question
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Convert the fractions to decimals
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Evaluate each term
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Add them up
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Answer : 3610.201--------------------------------------------
The probability would be 0.1971.
We will calculate a z-score for each end of this interval.
z = (X-μ)/σ
For the lower limit:
z = (1100-1050)/218 = 50/218 = 0.23
For the upper limit:
z = (1225-1050)/218 = 175/218 = 0.80
Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of, less than, the lower limit is 0.5910. The area under the curve to the left of, less than, the upper limit is 0.7881. To find the area between them, we subtract:
0.7881 - 0.5910 = 0.1971
Step-by-step explanation:
That is my answer, luckily I did the test
the answer is 360 because if you take a third you will have 120 then if you take half of that then you get 60