Transcript Chapter 5

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Statistics: A First Course
Donald H. Sanders
Robert K. Smidt
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Our QuickQuiz probability
distribution.
Figure 5.1
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Normal distribution.
Figure 5.4
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Normal distribution.
Figure 5.4
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Probability of breaking strength
between 110 and 120.
Figure 5.5
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Both intervals extend from
the mean (z = 0) to 1 standard
deviation above the
mean (z = 1.00).
Figure 5.6
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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
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The area under the normal curve
between vertical lines drawn at
z = –1.73 and z = +2.45 is .9511.
Figure 5.8
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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
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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
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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
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The End.
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