WB JEE 2010 | Probability Question 6 | Mathematics

WB JEE 2010

MCQ (Single Correct Answer)

-0.25

The probability that at least one of A and B occurs is 0.6. If A and B occur simultaneously with probability 0.3, then P(A') + P(B') is

0.9

0.15

1.1

1.2

WB JEE 2011

MCQ (Single Correct Answer)

-0.25

4 boys and 2 girls occupy seats in a row at random. Then the probability that the two girls occupy seats side by side is

$${1 \over 2}$$

$${1 \over 4}$$

$${1 \over 3}$$

$${1 \over 6}$$

WB JEE 2011

MCQ (Single Correct Answer)

-0.25

A coin is tossed again and again. If tail appears on first three tosses, then the chance that head appears on fourth toss is

$${1 \over {16}}$$

$${1 \over {2}}$$

$${1 \over {8}}$$

$${1 \over {4}}$$

WB JEE 2012

MCQ (Single Correct Answer)

-0.33

Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player. Then, the probability that the player gets all distinct cards is

$${}^{52}{C_{26}}$$ / $${}^{104}{C_{26}}$$

2 $$\times$$ $${}^{52}{C_{26}}$$ / $${}^{104}{C_{26}}$$

2¹³ $$\times$$ $${}^{52}{C_{26}}$$ / $${}^{104}{C_{26}}$$

2²⁶ $$\times$$ $${}^{52}{C_{26}}$$ / $${}^{104}{C_{26}}$$

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