We are interested in the number of years students in a particular elementary statistics class have lived in Maryland. The information in the following table is from the entire section. Number of years Frequency 7 9 14 9. 16 15 20 2 21 32 1 What is the mean number of years? Please report your answer to two decimal places.

question 5 18, 18, 19, 21, 23, 24, 24, 25, 26, 26 27, 27, 28, 30, 32, 34, 35, 35, 38, 41 Find the mean, median and mode from the data

The following chart provides data that is widespread. Use this data to answer questions 11 through 14. Ages: 25 41 33 42 28 31 35 41 22 0. 27 23 34 40 38 38 28 25

How Democratic is Georgia? Percentage of Democratic vote by counties in Georgia is shown for a recent election. For your convenience the data have been sorted in increasing order (Source: County and City Data Book, 12th Edition, U.S. Census Bureau). Make a frequency table with class limits, midpoints and frequency using five classes. Estimate the mean using the frequency table (i.e. using the grouped data, not the original data). Show your work using a table. Estimate the variance and standard deviation (definitional formula) using the frequency table (i.e. using grouped data, not the original data). Show your work using a table.