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Q. Define Multiplication Rule in probability?
Ans.
A family has two girls, Ann and Barb, and three boys, Carl, David and Earl, in it. In how many ways can the mother pick one boy and one girl to help her with the laundry? We can list all of the possibilities in a tree diagram.
There are 2 x 3 ways to choose one girl and one boy. This is no coincidence, in fact it is the multiplication rule!
In general, suppose we can do job 1 in p ways and an unrelated job 2 in q ways. Then we can do both job 1 and job 2 in p x q ways.
three complain forces of magnitudes 20N 30N and 45N
how many words can be formed from letters of word daughter such that each word contain 2vowles and 3consonant
If α, β are the zeros of the polynomial x 2 +8x +6 frame a Quadratic polynomial whose zeros are a) 1/α and 1/β b) 1+ β/α , 1+ α/β. Ans. P(x) = x 2 +8x +6 α + β = -8
The functions {sinmx; cosmx}; m = 0,....∞ form a complete set over the interval x ∈ [ -Π, Π]. That is, any function f(x) can be expressed as a linear superposition of these
length of subnormal to the curve y2=2x+1 at (4,3)
subtract 20and 10,and then mutiply by 5
Write down the system of differential equations for the population of both predators and prey by using the assumptions above. Solution We will start off through letting that
(a+b+c)2=
9x-5x+2 and y=4x+12
if P is a point in the interior of a triangles ABC,prove that AB>BC+CA
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