MATH1342
PROJECT (LAB) 6 – CHAPTERS 7 & 8
NAME:
________________
Collin County College
Fall 2011
Instructor:
Daryl Rupp
DUE DATE:
10/11/2011
Part I.
(Use the calculator)
Round the probabilities and ZValues to the third decimal place.
We know that 68.26% of the area lies between z = 1 and z = +1 for the standard normal
distribution curve. This means that the probability of picking a number between 1 and 1 (from a
standard normal distribution) is 0.6826.
Find the probability of picking a number between,
greater to or less than Z Value(s) below, from a standard normal distribution.
Use the graphs
on
page 3 to mark and shade the areas represented by the probabilities of 1 thru 10.
1.
z = 0.5244 and z = 0.5244 so the probability (area) is:
2.
z = 0.6745 and z = 0.6745 so the probability (area) is:
3.
z = 1.2816 and z = 1.2816 so the probability (area) is:
4.
z = 1.6449 and z = 1.6449 so the probability (area) is:
5.
z = 2.5758 and z = 2.5758 so the probability (area) is:
6.
z > 1.2816 so the probability (area) is:
7.
z < 2.5758 so the probability (area) is:
8.
Z > 0 so the probability (area) is:
9.
Z > 2.5758 so the probability (area) is:
10. Z > 1.6449 so the probability (area) is:
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 Fall '12
 LisaJuliano
 Math, Normal Distribution, Standard Deviation, standard normal distribution, Z Value

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