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Statistical inference
This is the process of drawing conclusions about attributes of a population based upon information contained in a sample or taken from the population.
This is divided into estimation of parameters and testing of hypothesis. Symbols for statistic of population parameters are as given below:
Sample Statistic
Population Parameter
Arithmetic mean
x¯
µ
Standard deviation
s
σ
Number of items
n
N
How may six digit numbers can be made in which the sum of the digits is even? Ans = 9*10*10*10*10*5
We know that the terms in G.P. are: a, ar, ar 2 , ar 3 , ar 4 , ................, ar n-1 Let s be the sum of these terms, then s = a + ar + ar 2
write in factor form 9x3+9x5
commutative law
INTRODUCTION : The other day I overheard 6-year-old Ahmed explaining to his older sister about why swallowing the seeds of an orange is harmful. He said, "The seed will become a p
20% of $19.95
in regrouping if we have abig number in the end what should i do?add an number on top of it,please help
sin3xcos5xdx
Find the lesser of two consecutive positive even integers whose product is 168. Let x = the lesser even integer and let x + 2 = the greater even integer. Because product is a k
Example1 : Solve the subsequent system of equations. -2x 1 + x 2 - x 3 = 4 x 1 + 2x 2 + 3x 3 = 13 3x 1 + x 3 = -1 Solution The initial step is to write d
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