An urn contains 8 red ans white balls. three balls are drawn at random
A person throws two fair dice. he wins Rs. 15 for throwing a doublet
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
If the values of regression coefficients are - 0.33 and -1.33 then the value of coefficient of correlation between the two variabl..
A die is rolled three times. the probability that the sum of
Three of six vertices of a regular hexagon are chosen at random. The probability that the triangle with three vertices is equilate..
if x1, x2 ..x18 are observation such that
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 ...xn are n observations such
let a and b two non - null events such that a b. then,
A bag contains 3 white and 5 black balls, One ball is drawn at random. Then, the probability that it is white, is
A person draws a card from a pack of playing cards
The probability of getting head and tail alternately in three throws of coin
Probability of product of a perfect square when two dice are thrown together is
A coin is tossed and a die is rolled
Consider the circuit, if the probability that each switch is closed is P, then find the probability of current flowing through AB
A four - digit number is formed by the digits 1, 2, 3, 4 with no repetition. The probability that the number is odd, is
There are 4 envelopes with addresses and 4 concerning letters
A die is rolled three times. The probability of getting a larger number than the previous number each time is
For the married couple living in jammu, the probability that a husband will vote in an election is
each of a and b can take values 1 or 2 with equal probability
Probability of throwing 16 in one throw with three dice is
Cards are drawn one by one without replacement from a well shuffled pack of 52 cards
From a pack of 52 cards, two cards are drawn one by one without replacement
A box containing 4 white pens and 2 black pens
The books contains 1000 pages numbered consecutively
If two numbers p and q are chosen randomly from the set
A number is chosen at random among the first 120 natural numbers
A bag contains 4 red and 6 black balls. A ball is
Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player
Two card are given successively with replacement from a pack of 52 cards
In a single throw of two dice, the probability of obtaining a total of 7 or 9, iw
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..
Let S be the sample space of the random experiment of throwing simultaneously two unbiased dice with. six faces
an urn contains 5 red and 2 green balls, a ball is drawn at random from the run.
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
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..
Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player. Then, the probability that the pla..
A committee of five is to be chosen from a group of 9 people. The probability that a certain married couple will either serve toge..
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