SOLUTION: A student has to choose an elective class for the last semester of high school. His counselor suggested 8 electives, 5 of which were dance classes.
If the student randomly chose t
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If the student randomly chose t
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Question 1160955: A student has to choose an elective class for the last semester of high school. His counselor suggested 8 electives, 5 of which were dance classes.
If the student randomly chose to read about 4 of the electives, what is the probability that all of them are dance classes?
Write your answer as a decimal rounded to four decimal places. Answer by Edwin McCravy(20060) (Show Source):
When you read several things, you always read them in a certain order, so:
The probability that the 1st one the student read was a dance class is 5/8.
The probability that the 2nd one the student read was a dance class is 4/7.
The probability that the 3rd one the student read was a dance class is 3/6.
The probability that the 4th one the student read was a dance class is 2/5.
Edwin
