What is the variance and standard deviation for the number of times the SAT is taken?xFrequency (f)fxf*x2= (f*x) x (x) (4) = (3)x(1)5152727-(2547473)(2547473)/1518859=880035.3688/1518859=0.5794(1)(2)(3)=(1)x(2)(4)=(3x1) Population Variance1721,769721,769721,769 2601,3251,202,6502,405,300 3166,736500,2081,500,624 422,29989,196356,784 56,73033,650168,250 Total1,518,8592,547,4735,152,727880035.36880.5794 n=1,518,859∑fx = 2,547,473 The population variance is 0.5794The Standard Deviation? 0.76 Can you show me the steps to reach the standard deviation of .76 ?

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Answered: The population variance is 0.5794 The…

The population variance is 0.5794 The Standard Deviation? 0.76 Can you show me the steps to reach the standard deviation of .76 ?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

What is the variance and standard deviation for the number of times the SAT is taken?

x	Frequency (f)	fx	fx2= (fx) x (x) (4) = (3)x(1)	5152727-(2547473)(2547473)/1518859=880035.3688/1518859=0.5794
*(1)*	*(2)*	*(3)=(1)x(2)*	*(4)=(3x1)*		Population Variance
1	721,769	721,769	721,769
2	601,325	1,202,650	2,405,300
3	166,736	500,208	1,500,624
4	22,299	89,196	356,784
5	6,730	33,650	168,250
Total	1,518,859	2,547,473	5,152,727	880035.3688	0.5794
	n=1,518,859	∑fx = 2,547,473

The population variance is 0.5794

The Standard Deviation? 0.76

Can you show me the steps to reach the standard deviation of .76 ?

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