T1.9 The proportions of freshmen (F), sophomore (P), junior (J), and senior (S) students in a 4-year college are given in the table. Assuming that the ranks of two randomly selected students are independent, find the probability that a) their ranks are the same b) exactly one of the students is a senior Rank F P J S Proportion .30 .25 .25 .20
T1.9 The proportions of freshmen (F), sophomore (P), junior (J), and senior (S) students in a 4-year college are given in the table. Assuming that the ranks of two randomly selected students are independent, find the probability that a) their ranks are the same b) exactly one of the students is a senior Rank F P J S Proportion .30 .25 .25 .20
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 9ECP: A random number generator selects two integers from 1 to 30. What is the probability that both...
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T1.9
The proportions of freshmen (F), sophomore (P), junior (J), and senior (S) students in a 4-year college are given in the table.
Assuming that the ranks of two randomly selected students are independent, find the probability that
a) their ranks are the same
b) exactly one of the students is a senior
Rank | F | P | J | S |
Proportion | .30 | .25 | .25 | .20 |
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