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 μ=​$1.489 and standard deviation σ=​$0.991. The population mean is ​$
​(Round to three decimal places as​ needed.)

The population standard deviation is ​$
​(Round to three decimal places as​ needed.)