The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean =$1.645 and standard deviation =$1.077.

LOADING...

Click the icon to view the frequency distribution for the tax rates.

The population mean is $

(Round to three decimal places asneeded.)

The population standard deviation is $

(Round to three decimal places asneeded.)

Compare these results to the values found using the actual data.

A.

The grouped values are both slightly smaller.

B.

The grouped mean is slightlylarger, while the grouped standard deviation is slightly smaller.

C.

The grouped mean is slightlysmaller, while the grouped standard deviation is slightly larger.

D.

The grouped values are both slightly larger.

Frequency distribution of cigarette tax rates

Tax Rate

Frequency

0.00-

0.49

7

0.50-

0.99

15

1.00-

1.49

8

1.50-

1.99

8

2.00-

2.49

7

2.50-

2.99

5

3.00-

3.49

4

3.50-

3.99

2

4.00-

4.49

3