Mathematics, 24.02.2020 21:16 Elliendc7939
The number of customers in line at a supermarket express checkout counter is a random variable whose probability mass function is given in the following table. x 0 1 2 3 4 5p(x) 0.10 0.25 0.30 0.20 0.10 0.05For each. customer, the number of items to be purchased is a random variable with probability mass function. y 1 2 3 4 5 6p(y) 0.05 0.15 0.25 0.30 0.15 0.10Let X denote the number of customers in line, and let Y denote the total number of items purchased by all the customers in line. Assume the number of items purchased by one customer is independent of the number of items purchased by any other customer. a. Find P(X = 2 and Y = 2).b. Find P(X = 2 and Y = 6).c. Find P(Y = 2).
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Mathematics, 21.06.2019 13:00
Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house
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Mathematics, 21.06.2019 16:30
Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression
Answers: 3
Mathematics, 21.06.2019 21:00
Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.
Answers: 1
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