Home
Q&A
Education
Technology
Credit
General
Health
Insurance
Questions
Ask a Question
Find the mean and variance of the number of tails when three coins are tossed simultaneously.
Home
Education
Find the mean and variance of the number of tails...
asked
Nov 13, 2021
in
Education
by
JackTerrance
Find the mean and variance of the number of tails when three coins are tossed simultaneously. Select the correct answer from above options
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
1
Answer
0
votes
answered
Nov 13, 2021
by
JackTerrance
Best answer
Correct Answer - Mean=1.5 variance = 0.75
Related questions
0
votes
Q: Find the mean and variance of the number of heads when two coins are tossed simultaneously.
Find the mean and variance of the number of heads when two coins are tossed simultaneously. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Find the mean, variance and standard deviation of the number heads when three coins are tossed.
Find the mean, variance and standard deviation of the number heads when three coins are tossed. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Three balls are drawn simultaneously from a bag containing 5 white and 4 red balls. Let X be the number of red balls drawn. Find the mean and variance
Three balls are drawn simultaneously from a bag containing 5 white and 4 red balls. Let X be the number of red ... and variance of X. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Find the mean, variance and standard deviation of the number of tails in two tosses of a coin.
Find the mean, variance and standard deviation of the number of tails in two tosses of a coin. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Three defective bulbs are mixd with 7 good ones. Let X be the number of defective bulbs when 3 bulbs are drawn at random. Find the mean and variance o
Three defective bulbs are mixd with 7 good ones. Let X be the number of defective bulbs when 3 bulbs are drawn ... and variance of X. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X. Also, find the mean and variance of X.
A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X. Also, find ... and variance of X. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Two cards are drawn simultaneously (or successively without replacement) from a well-shuffled pack of 52 cards. Find the mean and variance of the numb
Two cards are drawn simultaneously (or successively without replacement) from a well-shuffled pack of 52 cards. Find ... of aces. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Two cards are drawn successively with replacement from a well-shuffled pack of 52 cards. Find the mean and variance of the number of kings.
Two cards are drawn successively with replacement from a well-shuffled pack of 52 cards. Find the mean and ... number of kings. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Two cards are drawn from a well shuffled pack of 52 cards. Find the mean and variance for the number of face cards obtained.
Two cards are drawn from a well shuffled pack of 52 cards. Find the mean and variance for the number of face cards obtained. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Two cards are drawn successively with replacement from a well-shuffled pack of 52 cards. Find the mean and variance of the number of kings.
Two cards are drawn successively with replacement from a well-shuffled pack of 52 cards. Find the mean and ... number of kings. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: An urn contians 4 white and 3 red balls. Let X be the number of red balls in a random draw of 3 balls. Find the mean and variance of X.
An urn contians 4 white and 3 red balls. Let X be the number of red balls in a random draw of 3 balls. Find the mean and variance of X. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Find the mean, variance, standard deviation of number 6 in the two throws of a dice.
Find the mean, variance, standard deviation of number 6 in the two throws of a dice. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: A coin is tossed. If head comes up, die is thrown but if tail comes up, the coin is tossed again. Find the probability of obtaining: two tails (ii) he
A coin is tossed. If head comes up, die is thrown but if tail comes up, the coin is tossed again. Find the ... head and an even number, Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Three coins are tossed. Describe(i) Two events which are mutually exclusive.(ii) Three events which are mutually exclusive and exhaustive.(ii
Three coins are tossed. Describe(i) Two events which are mutually exclusive.(ii) Three events which are mutually ... not exhaustive. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
0
votes
Q: Find the probability distribution of(i) number of heads in two tosses of a coin.(ii) number of tails in the simultaneous tosses of thre
Find the probability distribution of(i) number of heads in two tosses of a coin.(ii) number of tails in the ... tosses of a com. Select the correct answer from above options...
asked
Nov 13, 2021
in
Education
by
JackTerrance
artificial-intelligence-interview-questions
artificial-intelligence-interview-questions-answers
artificial-intelligence-multiple-choice-questions
artificial-intelligence-mcq-with-answers
artificial-intelligence-mcq
artificial-intelligence-questions
...