Question

The frequency distribution was obtained using a class width of 0.50 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 μ =​ $1.749 and standard deviation σ = ​$1.119.

Frequency distribution of cigarette tax rates

Tax Rate	Frequency
0.00 - 0.49	5
0.50 - 0.99	15
1.00 - 1.49	7
1.50 - 1.99	8
2.00 - 2.49	5
2.50 - 2.99	5
3.00 -3.49	4
3.50 - 3.99	4
4.00 - 4.49	3

a. The population mean is $

(Round to three decimal places)

b. The population standard deviation is $

(Round to three decimal places)

Answer 1

from above population mean =1.799

population standard deviation =1.190 ( please try 1.179 if this comes wrong and revert)