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Quiz-1

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Question 1

Time: 00:00:00
Sam and Joan are playing a tennis match. If the probability of Sam's win is 0.59, then find the probability of Joan's win.

0.41

0.41

0.42

0.42

0.56

0.56

0.67

0.67

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Question 2

Time: 00:00:00
Let A and B be events on the same sample space, with P (A) = 0.6 and P (B) = 0.7. Can these two events be disjoint?

Yes

Yes

No

No

none of the above

none of the above

all of the above

all of the above

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Question 3

Time: 00:00:00
A family has two children. find the probability that both the children are girls given that at least one of them is a girl?

1/3

1/3

2/3

2/3

1/4

1/4

None of these

None of these

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Question 4

Time: 00:00:00
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

2/7

2/7

1/6

1/6

2/3

2/3

4/5

4/5

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Question 5

Time: 00:00:00
Determine the probability that a digit chosen at random from the digits 1, 2, 3, …12 will be odd.

1/2

1/2

1/3

1/3

2/7

2/7

1/8

1/8

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Question 6

Time: 00:00:00
The probability that Soumya will get marry within 365 days is 'a' and the probability that her colleague Alma get marry within 365 days is 'b'. Find the probability that only one of the two gets marry at the end of 365 days.

a-b-2ab

a-b-2ab

a+b-2ab

a+b-2ab

a-b

a-b

a-2ab

a-2ab

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Question 7

Time: 00:00:00
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

9/20

9/20

4/9

4/9

3/5

3/5

3/

3/

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Question 8

Time: 00:00:00
A bag contains 12 white and 18 black balls. Two balls are drawn in succession without replacement. What is the probability that first is white and second is black?

36/145

36/145

22/78

22/78

23/90

23/90

None of these

None of these

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Question 9

Time: 00:00:00
If a number is chosen at random from 1 to 100, then the probability that the chosen number is a perfect cube is

1/25

1/25

2/89

2/89

2/4

2/4

3/9

3/9

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Question 10

Time: 00:00:00
 What is the probability of getting a sum 9 from two throws of dice?

1/6

1/6

1/9

1/9

2/3

2/3

2/9

2/9

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

Question 1

Time: 00:00:00
Sam and Joan are playing a tennis match. If the probability of Sam's win is 0.59, then find the probability of Joan's win.

0.41

0.41

0.42

0.42

0.56

0.56

0.67

0.67

Once you attempt the question then PrepInsta explanation will be displayed.

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Start

Question 2

Time: 00:00:00
Let A and B be events on the same sample space, with P (A) = 0.6 and P (B) = 0.7. Can these two events be disjoint?

Yes

Yes

No

No

none of the above

none of the above

all of the above

all of the above

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Question 3

Time: 00:00:00
A family has two children. find the probability that both the children are girls given that at least one of them is a girl?

1/3

1/3

2/3

2/3

1/4

1/4

None of these

None of these

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Question 4

Time: 00:00:00
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

2/7

2/7

1/6

1/6

2/3

2/3

4/5

4/5

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Question 5

Time: 00:00:00
Determine the probability that a digit chosen at random from the digits 1, 2, 3, …12 will be odd.

1/2

1/2

1/3

1/3

2/7

2/7

1/8

1/8

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Question 6

Time: 00:00:00
The probability that Soumya will get marry within 365 days is 'a' and the probability that her colleague Alma get marry within 365 days is 'b'. Find the probability that only one of the two gets marry at the end of 365 days.

a-b-2ab

a-b-2ab

a+b-2ab

a+b-2ab

a-b

a-b

a-2ab

a-2ab

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Question 7

Time: 00:00:00
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

9/20

9/20

4/9

4/9

3/5

3/5

3/

3/

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Question 8

Time: 00:00:00
A bag contains 12 white and 18 black balls. Two balls are drawn in succession without replacement. What is the probability that first is white and second is black?

36/145

36/145

22/78

22/78

23/90

23/90

None of these

None of these