a bag contain 5 red and 3 blue discs discs is chosen at random and then replaced. this is repeated 200 times, how many times would you expect a red disc to be c
Mathématiques
ahmedhaykal782
Question
a bag contain 5 red and 3 blue discs discs is chosen at random and then replaced. this is repeated 200 times, how many times would you expect a red disc to be chozen ?
1 Réponse
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1. Réponse veryjeanpaul
Réponse :
Good afternoon
Explications étape par étape :
In the bag there are 8 discs (5 red and 3 blue) .If you take a discs ,the probability to have a red one is 5/8 .
So if you repeat this operation 200 times you can expect to take a red one:
200*5/8=125 times.