There are 31 fish in a tank.there are 3 more blue fish than green fish.how many blue fish is there
1 answer:
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<u>Complete Question</u>
The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. The results are: 59 for Bride, 50 for Groom, 30 for both. Find the probability that a randomly selected person from this sample was a friend of the bride OR of the groom.
Answer:
0.9875
Step-by-step explanation:
Total Number of Guests, n(S)=80
Let the Event (a friend of the bride) =B
Let the Event (a friend of the groom) =G
n(B) =59
n(G)=50
Therefore:
Number of Guests who was a friend of the bride OR of the groom = 79
Therefore:
The probability that a randomly selected person from this sample was a friend of the bride OR of the groom.
Answer:
117.5
Step-by-step explanation: