Mathematics, 02.03.2020 16:49 ameliaparry123p2eupk
A company that manufactures mufflers for cars offers a lifetime warranty on its products, provided that ownership of the car does not change. Only 20% of its mufflers are replaced under this warranty.
a. Define the random variable X as the number of mufflers replaced in a sample of 400 purchases. Give the distribution of X.
b. Referring to part 2a), what is the approximate probability that between 75 and 100 mufflers (inclusive) arc replaced under warranty?
c. Among 400 randomly selected purchases, what is the approximate probability that at most 70 are ultimately replaced under warranty?
Answers: 2
Mathematics, 21.06.2019 15:20, angelbabynn05
Abcd ≅ klmn ≅ pqrs ≅ wxyz given that information, which figures are reflections of abcd?
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Mathematics, 21.06.2019 19:00, breannaasmith1122
Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.
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Mathematics, 22.06.2019 00:30, savthespice
Bo is buying a board game that usually costs bb dollars. the game is on sale, and the price has been reduced by 18\%18%. which of the following expressions could represent how much bo pays for the game? choose 2 answers: choose 2 answers: (choice a) a 0.82b0.82b (choice b) b 1.18b1.18b (choice c) c b-0.18b−0.18 (choice d) d b-18b−18 (choice e) e b-0.18bb−0.18b
Answers: 2
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