joshwalker7926 joshwalker7926

21-12-2022
Mathematics

Answered

A student randomly guesses on 10 true or false questions. use the binomial model to find the probability that the student gets 7 out of the 10 questions right. p ( x ) = [ n ! x ! ( n − x ) ! ] p x q n − x
a. 11.8%
b. 20.9%
c. 32.4%
d. 50%

Answer :

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