Question no 1:

Production of to new machine are given select amachine in which it is is more preferable:

Machine A: 0, 25, 28, 21, 17

Machine B 12, 17, 21, 20, 18

Question no 2:

verify that from the following data mean deviation about mean is greater than mean deviation about median

{M.D.(X)>M.D.(X)}

3,0,-3,5,6,5

Question no 3:

1: There are R2 to mangoes 3 Apple and 2 banana plants in how many e-way this can be e planted in in a line any kind of plant can be planted next to any kind of plant.

2: A committee of 4 members is to be e selected from among seven labor delegates and for management representative how many committee formation will have at least two labor delegates.

3: find the number of of permutation that can be formed from all the letter of the world "LEMON".

Question no 4:

1)Han coin is tossed threewhat what is is the probability e off of getting:

a)exactly two head

b)At most one head

c)All faces are same

2) pair of of this are rolled only e once what it is is the probability e off of getting a sum of dots is 8 of 12.

Question no 5:

1)Four cards are drawn at random from a disc of wall shuffled 52 cards what is the the probability of getting one card from each suit.

2) The the probability that a patient recovers from a a delicate heart operation is 0.8 4 patients have this operation what is the probability of of survival for or a at least 3 patients