1.) The following table displays the salaries of 20 workers per week:

210, 209, 212, 208, 217, 207, 210, 203, 208, 210

210,199, 215, 221, 213, 218, 202, 218, 200, 214.

a) Draw a frequency table for these salaries. Use 6 classes of equal width.

b). Draw a histogram depicting the data.

c) Draw a frequency polygon for these data.

2.) A sample of 19 exam grades was randomly selected for a large class:

76, 74, 82, 96, 66, 76, 78, 72, 52, 68, 86, 84, 62, 76, 78, 92, 82, 74, 88

a). Construct a relative frequency distribution table take 50 as the lower limit of the first class and 10 as width of each class.

b) Draw a Bar graph depicting the data.

c) Draw a frequency polygon for these data.