Devry Math 221 Week 5 Homework - Latest

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 the...