Probability

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Probability

Made by Pooja Anand

1 point

1/8

1/10

17/20

7/8

Clear selection

1 point

1/4

1/3

5/12

7/12

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3.If two events are independent then

1 point

They must be mutually exclusive

Sum of their probabilities is 1

Both are correct

None is correct

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4. A bag contains 5 red and 3 blue balls. If 3 balls are taken out randomly without replacement ,find the probability of taking out exactly one blue ball.

2 points

45/196

15/29

15/56

5/56

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5. Eight coins are tossed together. The probability of getting exactly 3 heads is

1 point

7/32

1/256

5/32

3/32

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6. Find the value of k

1 point

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7. Two independent events are always mutually exclusive

1 point

True

False

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8. A box contains 8 bulbs of which 3 are defective. If two bulbs are taken out without replacement, find the probability that both are defective.

2 points

33/56

1/14

9/64

3/28

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