In: Statistics and Probability
suppose 10 students get A's, 2 Students get B's 3 Students get C's, and one student gets an F
If a committee is formed with 3 people, what is the probability that there are two people with an A and 1 with a C?
What is the probability of selecting a grade A student for the first time on either the 2nd or 3rd selection?
10 students get A's, 2 Students get B's 3 Students get C's, and one student gets an F
Total = 10 + 2 + 3 + 1 = 16
If a committee is formed with 3 people, what is the probability that there are two people with an A and 1 with a C?
P[ there are two people with an A and 1 with a C ] =
P[ there are two people with an A and 1 with a C ] =
P[ there are two people with an A and 1 with a C ] =
P[ there are two people with an A and 1 with a C ] = 0.2411
What is the probability of selecting a grade A student for the first time on either the 2nd or 3rd selection?
P[ grade A student for the first time on either the 2nd or 3rd selection ] = 1 -P[ grade A student for the first time on 1st selection ]
P[ grade A student for the first time on 1st selection ] =
P[ grade A student for the first time on 1st selection ] =
P[ grade A student for the first time on 1st selection ] =
P[ grade A student for the first time on either the 2nd or 3rd selection ] = 1 -
P[ grade A student for the first time on either the 2nd or 3rd selection ] =
P[ grade A student for the first time on either the 2nd or 3rd selection ] = 0.9832