# 63% of all students at a college still need to take another math class. If 4 students are randomly selected, find the probability thata. 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. d. Between 2 and 3 (including 2 and 3) of them need to take another math class. Round all answers to 4 decimal places.

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63% 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.
d. Between 2 and 3 (including 2 and 3) of them need to take another math class.

Round all answers to 4 decimal places.

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Step 1

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Step 2

It is given that n =4 and p = 0.63.

The probability mass function of binomial distribution is given below:

Step 3

a)

The probability that exactly two of them need to tak... help_outlineImage TranscriptioncloseР(х - 2)-'с, (0.63) (1-0.63)* -2 ५-ম п! "С, * (п - х)!, =0.3260 fullscreen

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