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Devry Math 221 Week 5 Homework - Latest

  • Date Submitted: 02/11/2016 03:57 AM
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DeVry MATH 221 Week 5 Homework - Latest
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MATH 221 Homework Week 5


1 A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates a normal distribution could be used a model for the variable.


1. The histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable.
2. The histogram is bell-shaped, so a normal distribution could be used as a model for the variable.
3. The histogram is not bell-shaped, so a normal distribution could be used as a model for the variable.
4. The histogram is bell-shaped, so a normal distribution could not be used as a model for the variable.


1. A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates a normal distribution could be used a
model for the variable.
1. The histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable.
2. The histogram is bell-shaped, so a normal distribution could be used as a model for the variable.
3. The histogram is not bell-shaped, so a normal distribution could be used as a model for the variable.
4. The histogram is bell-shaped, so a normal distribution could not be used as a model for the variable.

2 Find the area of the shaded region. The graph depicts   the standard normal distribution with mean 0 and standard deviation 1.

The area of the shaded region is 0.7823
(round to 4 decimal places as needed.)


2. Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
The area of the shaded region is .7291
(round to 4 decimal places as needed.)


3. Find the area of...

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