Question
A person can hit a target 3 times out of 8 shots. If he
fires 10 shots, what is the probability that he will hit the target twiceSolution
n C r (P)r (1-P) n-r number of total shots (n) = 10 r = 2 Probability of hit shots = 3/8 Probability of not hit = 5/8 probability that he will hit the target twice = 10 C2 (3/8)2 (1-3/8) 10-2 = (10×9/2) (3/8)2 (5/8)8 = (34×59)/810
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true and th...
In which of the following expressions does the expression ‘L > B’ and ‘R < N’ is true?
Statements: V ≥ O ≥ S = A > J, M < Y = P ≤ O > R
Conclusion:
I. O > M
II. A ≥ M
III. V > R
Statements: A > B ≥ C ≤ D; E ≥ F ≥ G = A
Conclusion:
I. E > D
II. D ≥ E
Statements: N < G ≥ F > E ≥ D, D = O ≥ I > P
Conclusions:
I. D < G
II. N > I
III. P < E
- Statements: F > G ≥ H = I < J = K ≤ L ≤ M = N
Conclusions:
I. M > J
II. G ≥ N
III. J = M In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
In which of these expression ‘X ≤ B’ is definitely true?
Statement: I ≤ S, S < X, X = F, F ≤ K
Conclusion: I. K > I II. I < X
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