Step-by-step explanation:
5: x= 15.3
6: x= 11.7
7: x= 18.6
8:x= 31.7
9: x= 47.0
10:x= 25.0
Maya designed two intersecting roads. She drew the roads so that one of the angles at the intersection was 45 degrees. What are
1 answer:
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Answer:
e. 0.977
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
Which of the following is closest to the proportion of daily transactions greater than 350?
This is 1 subtracted by the pvalue of Z when X = 350. So
has a pvalue of 0.023
1 - 0.023 = 0.977
So the correct answer is:
e. 0.977