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PowerPoint Presentation Materials
Statistics: A First Course
Donald H. Sanders
Robert K. Smidt
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-1
Our QuickQuiz probability
distribution.
Figure 5.1
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-2
5-3
Normal distribution.
Figure 5.4
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-4
5-5
Normal distribution.
Figure 5.4
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-6
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Probability of breaking strength
between 110 and 120.
Figure 5.5
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-8
5-9
Both intervals extend from
the mean (z = 0) to 1 standard
deviation above the
mean (z = 1.00).
Figure 5.6
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-10
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The probability that a z value
selected at random will fall
between 0 and 2.27 or between
–2.27 and 0 is .4884.
Figure 5.7
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-12
5-13
The area under the normal curve
between vertical lines drawn at
z = –1.73 and z = +2.45 is .9511.
Figure 5.8
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-14
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The area under the normal curve
between a z value of –1.54 and
a z value of –.76 is .1618.
Figure 5.9
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-16
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The area under the normal curve
to the left of a z value of
–1.96 is .0250.
Figure 5.10
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
5-18
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The area under the normal curve
to the left of a z value
of 1.42 is .9222.
Figure 5.11
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
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The End.
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