Mathematics, 12.08.2020 04:01 sameh0425
Everyday for 60 days, there is a 25% chance of rain. a) Find the probability that it will rain exactly 50 days. b) Find the expected value and variance of the number of rainy days. c) Approximate the probability that it will rain at least 20 days. d) Approximate the probability that there are more than 40 and less than 50 rainy days.
Answers: 3
Mathematics, 21.06.2019 14:30
Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.
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Mathematics, 21.06.2019 17:00
(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder
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Mathematics, 21.06.2019 21:00
These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets
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Mathematics, 21.06.2019 21:30
50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.
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Everyday for 60 days, there is a 25% chance of rain. a) Find the probability that it will rain exact...
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