Mathematics, 07.03.2020 04:27 ImCoolJenny
A hydrologist working for a corporate farm finds that the distribution of October rainfall totals, over the years for which she has records, is approximately normal with mean 3 inches and standard deviation 1. She supposes that, for each future October, its rainfall total is a random variable taken from this distribution. Find the number such that the probability is 0.985 that next October’s rainfall is less than that number.
Answers: 2
Mathematics, 21.06.2019 18:00
The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.
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Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
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Mathematics, 21.06.2019 22:50
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
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