ProbabilityHard
Question
If a, b and c are three numbers (not necessarily different) chosen randomly and with replacement from the set {1, 2, 3, 4, 5}, the probability that (ab + c) is even, is -
Options
A.
B.
C.
D.
Solution
a, b & c are three numbers
set (1, 2, 3, 4, 5)
sample space = 53
ab + c = even
favourable case = 27 + 12 + 12 + 8 = 59
Probability to getting even no. =
set (1, 2, 3, 4, 5)
sample space = 53
ab + c = even
favourable case = 27 + 12 + 12 + 8 = 59
Probability to getting even no. =
Create a free account to view solution
View Solution FreeMore Probability Questions
If two of the 64 squares are chosen at random on a chess board, the probability that they have a side in common is -...One Indian and four American men and their wives are to be seated randomly around a circular table. Then the conditional...The probabilities that a student passes in Mathematics, phtsis and Chemistry are m.p and c respectively. Of these subjec...A bowl has 6 red marbles and 3 green marbles. The probability that a blind folded person will draw a red marble on the s...The odd against throwing 10 with two dice in a throw are-...