In a group of 21 aliens, there are 6 Cybermen, 7 Daleks and 8 Jovians. (a)  Suppose that 5 aliens are randomly chosen without replacement. Find the probability that at most 2 Cybermen are chosen. (b)  Suppose that 4 aliens are randomly chosen without replacement and it is known that 2 Cybermen are chosen. Find the probability that at least 1 Dalek is chosen. (c) Suppose that 4 aliens are randomly chosen without replacement and it is known that at least 2 Daleks are chosen. Find the probability that no Jovian is chosen.

Q: Box A has three red balls and two white balls. Box B has one red ball and two white balls.  Suppose…

A: Given that  Box A has three red balls and two white balls. box B has one red and two white balls.…

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A: Given information: Number letters in each bag = 26 Let Sophia randomly takes a letter from her bag…

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A: Given : Total 90 students.

Q: A child is allowed to have 2 treats from a bag containing 21 chocolates, 11 hard candies, and 10…

A:

Q: , find the probability that neither is red.

A:

Q: Three balls are selected randomly from a bag containing 4 red balls and 7 blue ones. Find the…

A: From the provided information, Red balls = 4 Blue balls = 7 Total balls = 11

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A: Introduction: Suppose X and Y are two events, with respective probabilities P (X) and P (Y). Denote…

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A: Each of the bag contains 500 marbles.

Q: Suppose each time you take a free-throw, there’s 20% chance that it will go in. You must make 5…

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Q: Suppose that the probability that Bob eats an apple at lunch is 32%.  Also, suppose that the…

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