im reasking this question from before because i was told i ws wrong form my teacher,( use the combination button (nCr) in the Probability section of your calculator instead of the combination formula...



im reasking this question from before because i was told i ws wrong form my teacher,( use the combination button (nCr) in the Probability section of your calculator instead of the combination formula (with the factorials)We only need to calculate the probabilities that are being asked for in parts (a-c). Your answer for part (b) is correct. However, it would have been simpler to use your answer from part (a) to compute the probability. The events in part (a) and part (b) are complements. The complement (or opposite) of at least one person is nobody (0 people). So, the probability of at least one person doing a one time fling = 1 – P(0), which you found in part (a).




The one time fling! have you ever purchased an article of clothing (dress,sports,jacket, etc.), worn the item once to a party and then returned the purchase? this is called a onetime fling. about 10% of all adults deliberately do a onetie fling and feel no guilt abnout it. ( source: are you normal?, by bernice kanner, st. martins press).




In a group of seven adult friends, what is the probability that:




(A) no one has done a onetime fling?




(B)at least one person has done a onetime fling?




(C)no more than two people have done a onetime fling?



Jun 01, 2022
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