3. An experiment has the probability distribution given in the table below. 3 4 1 0.1 0.3 0.1 P(X = x) 0.5 a) ' What is the probability that a single randomly-chosen value of X is less than 2.5? Calculate out to a numeric answer. You must show all of your steps to receive full credit. oloctod from the population. What is the probability

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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3. An experiment has the probability distribution given in the table below.
1
3
4
P(X = x)
0.5
0.1
0.3
0.1
a)
What is the probability that a single randomly-chosen value of X is less than 2.5?
Calculate out to a numeric answer. You must show all of your steps to receive full credit.
b)
)A sample of size 49 is randomly selected from the population. What is the probability
that the sample mean is less than 2.5? Calculate out to a numeric answer. You must show all of your
steps to receive full credit. NOTE: Insert Math Equation does not have a way to insert the
notation for sample mean. If you are referring to the random variable, type in X-bar. If you are
referring to the calculated value, type in x-bar.
Transcribed Image Text:3. An experiment has the probability distribution given in the table below. 1 3 4 P(X = x) 0.5 0.1 0.3 0.1 a) What is the probability that a single randomly-chosen value of X is less than 2.5? Calculate out to a numeric answer. You must show all of your steps to receive full credit. b) )A sample of size 49 is randomly selected from the population. What is the probability that the sample mean is less than 2.5? Calculate out to a numeric answer. You must show all of your steps to receive full credit. NOTE: Insert Math Equation does not have a way to insert the notation for sample mean. If you are referring to the random variable, type in X-bar. If you are referring to the calculated value, type in x-bar.
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