Assume that random guesses are made for seven multiple choice questions on an SAT​ test, so that there are n=9 ​trials, each with probability of success​ (correct) given by p=0.25. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than . P(X<4)=nothing ​(Round to four decimal places as​ needed

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Assume that random guesses are made for
seven
multiple choice questions on an SAT​ test, so that there are
n=9
​trials, each with probability of success​ (correct) given by
p=0.25.
Find the indicated probability for the number of correct answers.

Find the probability that the number x of correct answers is fewer than
.
P(X<4)=nothing
​(Round to four decimal places as​ needed

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