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adoni [48]
4 years ago
14

A. find the probability that an observation is at least 1 standard deviation above the mean.

Mathematics
1 answer:
REY [17]4 years ago
7 0
If its a normal distribution that would be 34.1%
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d. 690.1 units²

Step-by-step explanation:

1. You can use the Heron's formula to calculate the area of the triangle, which is:

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