Let the Probability that a batter gets a hit is 1/4. If he plays 4 bats the probability that he gets at least one hit is
A problem of mathematics is given to three students whose chances of solving the problem are 1/3, 1/4 and 1/5 respectively
A die is rolled three times. the probability that the sum of
Out of a total of 600 bolts, 20% are too large and 10% are too small. The remaining are considered to be suitable
if x1, x2 ..x18 are observation such that
The probability of getting head and tail alternately in three throws of coin
A person draws a card from a pack of playing cards
A coin is tossed and a die is rolled
A person throws two fair dice. he wins Rs. 15 for throwing a doublet
Cards are drawn one by one without replacement from a well shuffled pack of 52 cards
each of a and b can take values 1 or 2 with equal probability
Consider the circuit, if the probability that each switch is closed is P, then find the probability of current flowing through AB
There are 4 envelopes with addresses and 4 concerning letters
Probability of product of a perfect square when two dice are thrown together is
From a pack of 52 cards, two cards are drawn one by one without replacement
For the married couple living in jammu, the probability that a husband will vote in an election is
A number is chosen at random among the first 120 natural numbers
A box containing 4 white pens and 2 black pens
Two card are given successively with replacement from a pack of 52 cards
Probability of throwing 16 in one throw with three dice is
In a single throw of two dice, the probability of obtaining a total of 7 or 9, iw
let a and b two non - null events such that a b. then,
A die is rolled three times. The probability of getting a larger number than the previous number each time is
A four - digit number is formed by the digits 1, 2, 3, 4 with no repetition. The probability that the number is odd, is
If two numbers p and q are chosen randomly from the set
The books contains 1000 pages numbered consecutively
Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player
If the standard deviation of 3, 8, 6, 10, 12, 9, 11, 10, 12, 7 is 2.71, then the standard deviation of 30, 80, 60, 100, 120, 90, 1..
From a group of 8 boys and 3 girls, a committee of 5 members to be formed. Find the probability that 2 particular girls are includ..
If the values of regression coefficients are - 0.33 and -1.33 then the value of coefficient of correlation between the two variabl..
A bag contains 3 white and 5 black balls, One ball is drawn at random. Then, the probability that it is white, is
Three of six vertices of a regular hexagon are chosen at random. The probability that the triangle with three vertices is equilate..
Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player. Then, the probability that the pla..
Let S be the sample space of the random experiment of throwing simultaneously two unbiased dice with. six faces
Three letters, to each of which corresponds an envelope, are placed in the envelopes at random. The probability that all the lette..
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
out of 3n consecutive natural numbers, 3 natural numbers are chosen at random without replacement. The probability that the sum of..
A determinant of second order is made with the elements 0 and 1. What is the probability that the determinant is positive ?
The odds against a certain event are 5 : 2 and the odds in favour of another independent event are 6 : 5. The probability that atl..
A scientist is weighing each of 30 fishes. Their mean weight worked out is 30 g and a standard deviation is 2 g. Later, it was fou..
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