I need help solving these questions.

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 ?=?$1.657 and standard deviation ?=?$1.086.

The population mean is ?

?(Round to three decimal places as?needed.)

The population standard deviation is ?

?(Round to three decimal places as?needed.)

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

A.The grouped values are both slightly larger.

B.The grouped mean is slightly?larger, while the grouped standard deviation is slightly smaller.

C.The grouped mean is slightly?smaller, while the grouped standard deviation is slightly larger.

D.The grouped values are both slightly smaller.

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