(Answered) Qusetion 1 an urn contains 3 red balls and 2 black balls if

Statistics

Qusetion: 1. An urn contains 3 red balls and 2 black balls. If two balls are chosen without replacement, find the probability that the second ball is black if it is known that the first ball chosen is black.

2. A coin is tossed 11 times in succession. Each 11-tuple outcome is equally likely to occur. If the first 10 tosses produced all heads, what is the probability that the 11th toss will also be a head?

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