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Systematic Sampling
Systematic sampling is a part of simple random sampling in descending or ascending orders. In systematic sampling a sample is drawn according to some predetermined object. Assume a population consists of 1000 units, and then every 10th, 20th or 50th item is selected. Systematic sampling method is very easy and economical. This also saves a lot of time
can anyone solve this assigment: D=lsqrt(3x-5) sqrt(2x)l =3 l -1 1 l
Estimation of population mean If the sample size is small (n In this case Population mean µ = x¯ ± tS x¯ x¯ = Sample mean S x¯ = s/√n S = standard deviation
If ABC is an obtuse angled triangle, obtuse angled at B and if AD⊥CB Prove that AC 2 =AB 2 + BC 2 +2BCxBD Ans: AC 2 = AD 2 + CD 2 = AD 2 + (BC + BD) 2 = A
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In proving relation of trigonometric ratios we became confused that what should we do next, so to complete any question quickly what should we do?
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if 2 ballons cost 12 coins,use equivelent ratios to see how many coins 8 ballons would cost
SUMMATION NOTATION Under this section we require to do a brief review of summation notation or sigma notation. We will start out with two integers, n and m, along with n a
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