probability of exactly 2

The region contains exactly one point, the point is optimal soluti..

The fundamental principle of counting (F.P.C) states that if an operation can be performed in m different ways and if for each such choice, another operation can be performed in n different ways, then both operations, in succession can be performed in exactly mn different ways. The ..

Binomial Distribution - A trial, which has only two outcomes i.e., "a success" or "a failure", is called a Bernoulli trial. Let X be the number of successes in a Bernoulli trial, then X can take 0 or 1 and P(X =1) = p = "probability of a success" P(X = 0) = 1 - p = q = "pro..

The lowest values of various classes are 11, 16, 21,. These values are called lower limits. The greatest values of various classes are 15, 20, 25,. These values are called upper limits. Therefore, Lower limit of class 11 - 15 is 11 Upper limit of class 11 - 15 is 15 Now, class limits are not alway..

Summary - The fundamental principle of counting (F.P.C) states that if an operation can be performed in m different ways and if for each such choice, another operation can be performed in n different ways, then both operations, in succession can be performed in exactly mn different ways. ..

P{X = x} is called probability mass functio..

In how many different arrangements can 6 gentlemen and 6 ladies sit around a table if i) there is no restriction and ii) no two ladies sit side by sid..

How many numbers are there between 100 and 1000 such that every digit is either 2 or ..

A decorative item dealer deals in only two items - wall hangings and artificial plants. He has 15,000 dollars to invest and a space to store all the most 80 pieces. A wall hanging costs him 300 dollars and an artificial plant 300 dollars. He can sell a wall hanging at a profit of 50 doll..

Question: The median of prime numbers between 51 and 80. Answer: 53, 59, 61, 67, 71, 73, 79 Median = Middle-most score Median = 6..