in Education by
A basket contains 20 apples and 10 oranges out of which 5 apple and 3 orange are defective. If a person takes out 2 at random what is the probability that either both are apples or both are good? Select the correct answer from above options

1 Answer

0 votes
by
 
Best answer
A: both are apples B: both are good P(A)= .20C2 .30C2 P(B)= .22C2 .30C2 P(A∩B)= .15C2 .30C2 P(A∪B)=P(A)+P(B)+P(A∩B) = .20C2 .30C2 + .22C2 .30C2 - .15C2 .30C2 .

Related questions

0 votes
0 votes
    A box contains 3 orange balls, 3 green balls and 2 blue balls. Three balls are drawn at random from the box without ... 1/28 D. 167/168 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
0 votes
    A box contains 100 bulbs 20 of which are defective. 10 bulbs are selected for inspection. Find the probability ... none3 is defective. Select the correct answer from above options...
asked Nov 15, 2021 in Education by JackTerrance
0 votes
0 votes
0 votes
0 votes
0 votes
    The probability of selecting a red ball at random from a jar that contains only red, blue and orange balls is `1 ... number in the jar. Select the correct answer from above options...
asked Nov 17, 2021 in Education by JackTerrance
0 votes
0 votes
    A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability that exactly ... /28 D. 5/28 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
0 votes
0 votes
    If the probability of a random variable X is a given below : X=x: -2 -1 0 1 2 3 P(X=x): 1 2 k 1 5 2k 3 10 ... B. 2 10 C. 3 10 D. 7 10 Select the correct answer from above options...
asked Nov 16, 2021 in Education by JackTerrance
...