MEDIUM
12th CBSE
IMPORTANT
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A die is thrown twice and the sum of the numbers appearing is observed to be 7. What is the conditional probability that the number 2 has appeared at least once?

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Important Questions on Binomial Distribution

MEDIUM
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 17
Two numbers are selected at random from integers 1 through 9. If the sum is even, what is the probability that both numbers are odd?
MEDIUM
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 18
In a class, 60% of the students read mathematics, 25% biology and 15% both mathematics and biology. One student is selected at random. What is the probability that he reads mathematics, if it is known that he reads biology?
MEDIUM
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 19
A couple has 2 children. What is the probability that both are boys, if it is known that one of them is boy?
MEDIUM
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 20
An unbiased die is tossed twice. What is the probability of getting  4, 5 or 6 on the first toss and 1, 2, 3 or 4 on the second toss?
HARD
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 21
A fair coin is tossed 6 times. What is the probability of getting at least 3 heads?
HARD
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 22
A coin is tossed 5 times. What is the probability that tail appears an odd number of times?
HARD
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 23
A coin is tossed 5 times. What is the probability that head appears an even number of times?
HARD
12th CBSE
IMPORTANT
SENIOR SECONDARY SCHOOL MATHEMATICS FOR CLASS 12>Chapter 32 - Binomial Distribution>OBJECTIVE QUESTIONS>Q 24
8 coins are tossed simultaneously. The probability of getting 6 heads is