3. Suppose eight coins are tossed simultaneously. If the random variable X denotes thenumber of heads, find the probability of getting:a) at least six heads,b) exactly six heads, andc) at most six heads. 4. 20 wrist watches in a box of 100 are defective. If 10 watches are selected at random,find the probability that:a) 10 are defective,b) at least one watch is defective, andc) at most 3 are defective.

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Answered: 3. Suppose eight coins are tossed…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 32E

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Similar questions

Show that the probability of drawing a club at random from a standard deck of 52 playing cards is the same as the probability of drawing the ace of hearts at random from a set of four cards consisting of the aces of hearts, diamonds, clubs, and spades.
Assume that a survey of 282 people is taken to determine the opinions of doctors, teachers, and lawyers on a proposed piece of legislation, with the results as shown in the table. A person is chosen at random from those surveyed. Refer to the table to find each probability. Number that favor Number that Oppose Number with No Opinion Total Doctors 70 32 17 119 Teachers 83 24 10 117 Lawyers 23 15 8 46 Total 176 71 35 282 A doctor opposes the legislation.
Assume that a survey of 282 people is taken to determine the opinions of doctors, teachers, and lawyers on a proposed piece of legislation, with the results as shown in the table. A person is chosen at random from those surveyed. Refer to the table to find each probability. Number that favor Number that Oppose Number with No Opinion Total Doctors 70 32 17 119 Teachers 83 24 10 117 Lawyers 23 15 8 46 Total 176 71 35 282 The person favors the legislation.

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3. Suppose eight coins are tossed simultaneously. If the random variable X denotes the number of heads, find the probability of getting: a) at least six heads, b) exactly six heads, and c) at most six heads.