61% of all students at a college still need to take another math class. If 4 students are randomly selected, find the probability that a. Exactly 2 of them need to take another math class. b. At most 2 of them need to take another math class. c. At least 2 of them need to take another math class.

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Q: 60% of all students at a college still need to take another math class. If 4 students are randomly…

A: Givenp=0.60n=4x~Binomial(n=4,p=0.60)P(X=x)=(nx)×px×(1-p)n-x ; x=0,1...,n

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A: Given 4 coins are tossed. We have to find the probability of tossing no heads.

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Q: Exactly 2 of them need to take another math class.  b. At most 2 of them need to take another math…

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Q: 61% of all students at a college still need to take another math class. If 5 students are randomly…

A:

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.