Statistical Abstract of the United States reported that 66% of students who graduated from high school in 2012 enrolled in college. Let X be the number of high school students that enrolled in college. Formulas needed: E(X) = n*p and Var (X) = n*p* (1 − p) a) If exactly 18 high school students are chosen at random, the expected number of high school students that are enrolled in college is Round your answer to the next whole number. b) If exactly 18 high school students are chosen at random, the std(X), standard deviation of the number of them that are enrolled in college is Round your answer to the nearest whole number.
Statistical Abstract of the United States reported that 66% of students who graduated from high school in 2012 enrolled in college. Let X be the number of high school students that enrolled in college. Formulas needed: E(X) = n*p and Var (X) = n*p* (1 − p) a) If exactly 18 high school students are chosen at random, the expected number of high school students that are enrolled in college is Round your answer to the next whole number. b) If exactly 18 high school students are chosen at random, the std(X), standard deviation of the number of them that are enrolled in college is Round your answer to the nearest whole number.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The Statistical Abstract of the United States reported that 66% of students who graduated from
high school in 2012 enrolled in college. Let X be the number of high school students that
enrolled in college.
Formulas needed: E (X) = n * p and Var (X) = n * p * (1 − p)
-
a) If exactly 18 high school students are chosen at random, the expected number of high school
students are enrolle in college is
Round your answer to next
whole number.
b) If exactly 18 high school students are chosen at random, the std(X), standard deviation of the
number of them that are enrolled in college is
Round your answer to the
nearest whole number.
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