Top 100+ questions in Education

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Q: Two cards are drawn at random and without replacement from a pack of 52 playing cards.

Two cards are drawn at random and without replacement from a pack of 52 playing cards. Find the probability that ... cards are black. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A box of oranges is inspected by examining three randomly selected oranges drawn without replacement.

A box of oranges is inspected by examining three randomly selected oranges drawn without replacement. If all the three ... for sale. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A fair coin and an unbiased die are tossed.Let A be the event ‘head appears on the coin’

A fair coin and an unbiased die are tossed.Let A be the event head appears on the coin' and B be the ... independent events or not. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A die marked 1, 2, 3 in red and 4, 5, 6 in green is tossed. Let A be the event,

A die marked 1, 2, 3 in red and 4, 5, 6 in green is tossed. Let A be the event, the number is event ... red'. Are A and B independent? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Let E and F be events with P(E)= 3/5, P(F) = 3/10 and P(E F) = 1/5. Are E and F independent?

Let E and F be events with P(E)= 3 5 , P(F) = 3 10 and P(E F) = 1 5 . Are E and F independent? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Given that the events A and B are such that P(A) = 1/2 P(A ∪ B) = 3/5 and P(B) = p Find p if they are

Given that the events A and B are such that P(A) = 1 2 P(A ∪ B) = 3 5 and P(B) = p Find ... (i) mutually exclusive (ii) independent. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Let A and B be independent events with P(A) = 0.3 and P (B) = 0.4. Find (i) P(A∩B) (ii)P(A∪B)

Let A and B be independent events with P(A) = 0.3 and P (B) = 0.4. Find (i) P(A∩B) (ii)P(A∪B) (iii) P (A|B) (iv) P (B|A) Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: If A and B are two events such that P(A) = 1/4, P(B) = 1/2 and P(A ∩ B) = 1/8

If A and B are two events such that P(A) = 1 4 , P(B) = 1 2 and P(A ∩ B) = 1 8 Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Events A and B are such that P(E) = 3/5 , P(F)(B) = 7/12 P (not A or not B) = 1/4. State whether A and B are independent ?

Events A and B are such that P(E) = 3 5 , P(F)(B) = 7 12 P (not A or not B) = 1 4 . State whether A and B are independent ? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Given two independent events A and B such that P (A) = 0.3, P (B) = 0.6. Find (i) P (A and B) (ii) P (A and not B)

Given two independent events A and B such that P (A) = 0.3, P (B) = 0.6. Find (i) P (A and B) (ii) P ( ... B) (iv) P (neither A nor B) Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A die is tossed thrice. Find the probability of getting an odd number at least once.

A die is tossed thrice. Find the probability of getting an odd number at least once. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Two balls are drawn at random With replacement from a box containing 10 black and 8 red balls.

Two balls are drawn at random With replacement from a box containing 10 black and 8 red balls. Find the ... and other is red Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Probability of solving specific problem independently by A and B are

Probability of solving specific problem independently by A and B are 1 2 1 and 1 3 1 respectively. If both ... solves the problem. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: One card is drawn at random from a well shuffled deck of 52 cards.

One card is drawn at random from a well shuffled deck of 52 cards. In which of the following cases are the events ... a queen or jack'. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20%

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi ... reads Hindi news paper. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: The probability of obtaining an even prime number on each die, when a pair of dice is rolled is

The probability of obtaining an even prime number on each die, when a pair of dice is rolled is (A) 0 (B) 1 3 1 (C) 1 12 1 (D) 1 36 1 Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Two events A and B will be independent, if (A) A and B are mutually exclusive (B) P (A’B’) = [1 – P(A)] [1 – P(B)]

Two events A and B will be independent, if (A) A and B are mutually exclusive (B) P (A'B') = [1 - P(A)] [1 - P ... D) P (A) + P (B) = 1 Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: An urn contains 5 red and 5 black balls. A ball is drawn at random,

An urn contains 5 red and 5 black balls. A ball is drawn at random, its colour is noted and is returned to ... second ball is red ? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A bag contains 4 red and 4 black balls , another bag contains 2 red and 6 black balls.

A bag contains 4 red and 4 black balls , another bag contains 2 red and 6 black balls. One of the two bags ... is drawn from the first Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Of the students in a college, it is known that 60% reside in hostel and 40% are day scholars

Of the students in a college, it is known that 60% reside in hostel and 40% are day scholars (not residing in ... is a hostlier ? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: In answering a question on a multiple r. choice test, a student either knows the answer or guesses.

In answering a question on a multiple r. choice test, a student either knows the answer or guesses. Let 3 ... answered it correctly ? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A laboratory blood test is 99% effective in detecting a certain disease when it is in fact, present.

A laboratory blood test is 99% effective in detecting a certain disease when it is in fact, present. However, ... result is positive ? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: There are three coins. One is a two headed coin (having head on both faces),

There are three coins. One is a two headed coin (having head on both faces), another is a based coin that ... the two headed coin? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: An insurance company insured 2000 scooter drivers, 4000 car drivers and 6000 truck drivers.

An insurance company insured 2000 scooter drivers, 4000 car drivers and 6000 truck drivers. The probability of an ... scooter driver? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A factory has two machines A and B. Past record shows that machine A produced 60%

A factory has two machines A and B. Past record shows that machine A produced 60% of the items of output and ... produced by machine B? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Two groups are competing for the position on the Board of directors of a corporation.

Two groups are competing for the position on the Board of directors of a corporation. The probabilities that the ... the second group. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin three times

Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin three times and notes the number of heads ... 3 or 4 with the die? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A manufacturer has three machine operators A, B and C. The first operator A produces 1% defective items,

A manufacturer has three machine operators A, B and C. The first operator A produces 1% defective items, where as ... produced by A? Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: A card from a pack of 52 cards is lost. From the remaining cards of the pack, two cards are . drawn

A card from a pack of 52 cards is lost. From the remaining cards of the pack, two cards are . drawn and ... lost card being a diamond. Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance

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Q: Probability that A speaks truth is 4/5 A coins is tossed. A reports that a head appears.

Probability that A speaks truth is 4 5 4 A coins is tossed. A reports that a head appears. The probability that actually ... (D) 2 5 2 Select the correct answer from above options...

asked Nov 25, 2021 in Education by JackTerrance