Math Problem Statement
91% of the largest colleges and universities (more than 15,000 total enrollments) have some online offerings. Suppose you randomly pick 43 such intitutions, and let X be the number of intitutions that offer distance learning courses. What is the distribution of X? X ~ (,) Please show the following answers to 4 decimal places. What is the probability that exactly 37 intitutions in this study offer distance learning courses? What is the probability that more than 37 intitutions in this study offer distance learning courses? What is the probability that at most 37 intitutions in this study offer distance learning courses? What is the probability that between 35 and 38 (including 35 and 38) intitutions in this study offer distance learning courses?
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Binomial Distribution
Discrete Random Variables
Formulas
P(X = k) = (n choose k) * p^k * (1-p)^(n-k)
P(X > k) = sum from k+1 to n of P(X = i)
P(X <= k) = sum from 0 to k of P(X = i)
Theorems
Binomial Theorem
Suitable Grade Level
Undergraduate Statistics
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