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Recent questions tagged q4-i

An experiment consists of rolling a die until a 2 appears.How many elements of the sample space correspond to the event that the 2 appears on the $k^{th}$ roll of the die?[Hint (a) first (k-1) rolls have 5 outcomes each and $k^{th}$ rolls should result in 1 outcomes.(b) $1+5+5^2+.......5^{k-1}$]

asked Jul 7, 2014 by sreemathi.v

1 answer

In a certain lottery 10,000 tickets are sold and ten equal prizes are awarded.What is the probability of not getting a prize if you buy one ticket

asked Jul 2, 2014 by sreemathi.v

1 answer

Three coins are tossed once,let A denote the event "three heads show",B denote the event "two heads and one tail show",C denote the event "three tails show" and D denote the event "a head shows on the first toss" which events are mutually exclusive ?

asked Jun 27, 2014 by sreemathi.v

1 answer

If $A=\{1,2,3,4\},B=\{3,4,5,6\},C=\{5,6,7,8\}$ and $D=\{7,8,9,10\}$ Find $A\cup B$

asked May 26, 2014 by sreemathi.v

1 answer

Write down all the subsets of the following sets $\{a\}$

asked May 26, 2014 by sreemathi.v

1 answer

In the following,state whether $A=B$ or not : $A=\{a,b,c,d\},B=\{d,c,b,a\}$

asked May 23, 2014 by sreemathi.v

1 answer

Write the following sets in the set-builder form $A=\{3,6,9,12\}$

asked May 23, 2014 by sreemathi.v

1 answer

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