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…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 3 9 12 24 Female 13 18 20 51 Total 16 27 32 75 If one student is chosen at random,a) Find the probability that the student got a C: b) Find the probability that the student was female AND got a "C": c) Find the probability that the student was female OR got an "C": d) If one student is chosen at random, find the probability that the student got a 'B' GIVEN they are female:
An urn B, contains 2 white and 3 black chips and another urn B, contains 3 white and 4 black chips. One urn is selected at random and a chip is drawn from it. If the chip drawn is found black, find the probability that the urn chosen was B. Select one: O A. 2041 O B. 241 OC 34 O D. 4
Consider a preschool class with four left-handed children and six right-handed children. Two children are selected without replacement. Let X be the number of left-handed children chosen.a)Find the probability noleft-handed children are chosen.b)Find the probability twoleft-handed children are chosen.c)Find the probability exactly one left-handed child is chosen.
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A store purchases baseball hats from two different manufacturers in 3 different colors, summarized below. One hat is chosen at random. Give your answer as a decimal out to at least 4 places. Black Blue Red Total Manufacturer A 13 29 15 57 Manufacturer B 19 16 14 49 Total 32 45 29 106 a) Find the probability that the hat was was Red or was from Manufacturer B. b) Find P(RedC). c) Find P(Manufacturer B and Red). d) Find P(Manufacturer B or Red).
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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.