c) In a survey of 650 people, 345 people said that they voted in the last presidential election. What is the sample proportion of people who voted?
c) In a survey of 650 people, 345 people said that they voted in the last presidential election. What is the sample proportion of people who voted?
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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c) In a survey of 650 people, 345 people said that they voted in the last presidential election. What is the sample proportion of people who voted?
b) A test item on a standardized test is answered correctly by 70% of those taking the test. What is the probability a sample of 80 students will have more than 60 students answer the item correctly?
c) A state mathematics test for 8th grade students finds 80% of students achieve a satisfactory grade. What is the probability a school randomly selects a class of 30 students and 27 or more of them receive a satisfactory grade?
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