get the sample mean, sample variance, and sample standard deviation: X P(x) x *P(x) x2 X2P(x) 57 inches 1/22 2.5935 3249 147.8295 59 inches 3/22 8.0476 3481 474.8084 59.50 inches 1/22 2.70725 3540.25 161.0814 60 inches 1/22 4.454 3600 327.24 61 inches 5/22 13.8635 3721 845.7833 61.20 inches 3/22 8.34768 3745.44 510.878 62 inches 1/22 2.821 3844 174.902 63.2 inches 1/22 2.8756 3994.24 181.7379 63.6 inches 1/22 2.8938 4044.96 184.0457 64 inches 1/22 2.912 4096 186.368 64.8 inches 1/22 2.9484 4199.04 191.0563 65 inches 1/22 2.9575 4225 192.2375 69 inches 1/22 3.1395 4761 216.6255 = 61.56313 = 3794.594

get the sample mean, sample variance, and sample standard deviation: X P(x) x *P(x) x2 X2P(x) 57 inches 1/22 2.5935 3249 147.8295 59 inches 3/22 8.0476 3481 474.8084 59.50 inches 1/22 2.70725 3540.25 161.0814 60 inches 1/22 4.454 3600 327.24 61 inches 5/22 13.8635 3721 845.7833 61.20 inches 3/22 8.34768 3745.44 510.878 62 inches 1/22 2.821 3844 174.902 63.2 inches 1/22 2.8756 3994.24 181.7379 63.6 inches 1/22 2.8938 4044.96 184.0457 64 inches 1/22 2.912 4096 186.368 64.8 inches 1/22 2.9484 4199.04 191.0563 65 inches 1/22 2.9575 4225 192.2375 69 inches 1/22 3.1395 4761 216.6255 = 61.56313 = 3794.594

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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X	P(x)	*x P(x)**	x²	X²P(x)
57 inches	1/22	2.5935	3249	147.8295
59 inches	3/22	8.0476	3481	474.8084
59.50 inches	1/22	2.70725	3540.25	161.0814
60 inches	1/22	4.454	3600	327.24
61 inches	5/22	13.8635	3721	845.7833
61.20 inches	3/22	8.34768	3745.44	510.878
62 inches	1/22	2.821	3844	174.902
63.2 inches	1/22	2.8756	3994.24	181.7379
63.6 inches	1/22	2.8938	4044.96	184.0457
64 inches	1/22	2.912	4096	186.368
64.8 inches	1/22	2.9484	4199.04	191.0563
65 inches	1/22	2.9575	4225	192.2375
69 inches	1/22	3.1395	4761	216.6255
		= 61.56313		= 3794.594