A class has 12 students registered. On any class time 45% of the students are absent. a. Find the mean and standard deviation of the absent students in the class. b. What is the probability that 7 students will be absent from class on any given day? c. What is the probability that less than 3 or more than 9 will be absent? d. What is the probability that less than 2 and more than 9 will be absent?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A class has 12 students registered. On any class time 45% of the students are
absent.
a. Find the mean and standard deviation of the absent students in the class.
b. What is the probability that 7 students will be absent from class on any
given day?
c. What is the probability that less than 3 or more than 9 will be absent?
d. What is the probability that less than 2 and more than 9 will be absent?
Transcribed Image Text:A class has 12 students registered. On any class time 45% of the students are absent. a. Find the mean and standard deviation of the absent students in the class. b. What is the probability that 7 students will be absent from class on any given day? c. What is the probability that less than 3 or more than 9 will be absent? d. What is the probability that less than 2 and more than 9 will be absent?
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