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# If m and 2 s are the mean and variance of the random variable X, whose distribution is given by

## The correct answer is:

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The value of k is

### The distribution of a random variable X is given below

The value of k is

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### The number of different triangles formed by joining the points A, B, C, D, E, F and G as shown in the figure given below is

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### The number of ways that the letters of the word ”PERSON” can be placed in the squares of the adjoining figure so that no row remains empty

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### The value of is

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### The determinant is equal to zero if are in

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### If satisfy then

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### End product of the following sequence of reaction is :

### End product of the following sequence of reaction is :

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### Arrange in the increasing order of boiling points:

i)

ii)

iii)

iv)

### Arrange in the increasing order of boiling points:

i)

ii)

iii)

iv)

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### Number of rectangles in fig. shown which are not squares is

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### Digit at unit place of sum (1!)^{2} +(2!)^{2} +(3!)^{2} ……… +(2008!)^{2} is

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### A person writes letters to 6 friends and addresses the corresponding envelopes. In how many ways can the letters be placed in the envelopes so that at least 4 of them are in wrong envelopes ?

### A person writes letters to 6 friends and addresses the corresponding envelopes. In how many ways can the letters be placed in the envelopes so that at least 4 of them are in wrong envelopes ?

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### The total numbers of integral solutions for (x,y,z) such that xyz = 24 is

### The total numbers of integral solutions for (x,y,z) such that xyz = 24 is

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### A seven digit number is in form of abcdefg (g, f, e, etc. are digits at units, tens, hundred place etc.) where a < b < c < d > e > f > g. The number of such numbers are

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### Number of ways in which 25 identical balls can be distributed among Ram, Shyam, Sunder and Ghanshyam such that atleast 1, 2, 3, and 4 balls are given to Ram, Shyam, Sunder and Ghanshyam respectively, is-

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