A Statistics class has 85 students. 48 of these are females and 37 are males. A random sample of 11 students in the class is selected. Let X = the number of the selected students who are female. a. How many possible ways are there to select the 6 out of 11 students (order does not matter) without replacement? b. What is the probability that X = 6 c. What is the probability that X=1?
A Statistics class has 85 students. 48 of these are females and 37 are males. A random sample of 11 students in the class is selected. Let X = the number of the selected students who are female. a. How many possible ways are there to select the 6 out of 11 students (order does not matter) without replacement? b. What is the probability that X = 6 c. What is the probability that X=1?
A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![A Statistics class has 85 students. 48 of these are females and 37 are males. A random sample of 11 students in the class is selected. Let X = the number
of the selected students who are female.
a. How many possible ways are there to select the 6 out of 11 students (order does not matter) without replacement?
b. What is the probability that X = 6
c. What is the probability that X=1?
d. What is the probability that X > 3?
e. What is the expected value of X?
f. What is the standard deviation of X?
g. What is the probability that X is within 2.0 standard deviations of its expected value?
h. What is the probability that X = 1.5?
Add any comments below.
5:32 PM
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10/1/2020
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Transcribed Image Text:A Statistics class has 85 students. 48 of these are females and 37 are males. A random sample of 11 students in the class is selected. Let X = the number
of the selected students who are female.
a. How many possible ways are there to select the 6 out of 11 students (order does not matter) without replacement?
b. What is the probability that X = 6
c. What is the probability that X=1?
d. What is the probability that X > 3?
e. What is the expected value of X?
f. What is the standard deviation of X?
g. What is the probability that X is within 2.0 standard deviations of its expected value?
h. What is the probability that X = 1.5?
Add any comments below.
5:32 PM
D.
10/1/2020
P Type here to search
144
%24
4.
%23
7.
8.
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