ch6sometechniquesofcalculation-2.studentview

# 4 30 n x shift s sum n exe shift shift s var xn exe

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Unformatted text preview: ∆ ∆ ∆ ∆ EXE EXE AC 2.4 30 = N x SHIFT S-SUM n EXE SHIFT SHIFT S-VAR xσn EXE SHIFT S-VAR EXE 3.3267 = µ 5.3517 = σ ∴ µ = 3.3267, σ = 5.3517 Example 3 : Example Find µ and σ for the data set: Find x p(x) 25 0.3 35 0.5 45 0.2 Total 1 Solution: Solution ON MODE COMP ON MODE SD OUTPUT: 25 25 35 45 SHIFT SHIFT SHIFT ; ; ; 0.3 0.5 0.2 DT DT DT SHIFT S-SUM SHIFT S-VAR SHIFT S-VAR n 1 34 = µ x xσn 7 =σ ∴ =34, σ =7 µ The formulas are: The µ = ∑ xi ⋅ p( xi ) = ∑ xi ⋅ P[ X = xi ] σ = ∑ x ⋅ p ( xi ) − µ 2 2 i 2 The creation of data to meet the given requirements of mean, standard deviation and /or correlation coefficient. cor...
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## This note was uploaded on 04/22/2011 for the course STAT 301 taught by Professor Gabrille during the Spring '11 term at HKU.

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