Please provide assistance with question 4

Question 4.

Answer the following questions based on the midterm exam score data given in Question # 3: (Show all work. Just the answer)

(a) What is the range of the midterm exam scores?

(b) What is the median of the midterm exam scores?

(c) What is the mode of the midterm exam scores?

Question #3

The midterm exam scores in a statistics class are shown in the following table:

67 92 76 45 85 70 87 84 67 72 84 85 55 76 84 98 59 93 87 83

Complete the following frequency distribution table using 6 classes: 40-49, 50-59, 60-69, 70-79, 80-89, and 90-99. Express the cumulative relative frequency to two decimal places. (Show all work. Just the answer, without supporting work, will receive no credit.)

Scores / Frequency / Relative Frequency / Cumulative RelativeFrequency

40 - 49 / 1 / 0.5 / 0.05

50 - 59 / 2 / 0.10 / 0.15

60 - 69 / 2 / 0.10 / 0.25

70 - 79 / 4 / 0.20 / 0.45

80 - 89 / 8 / 0.40 / 0.85

90 - 99 / 3 / 0.15/ 1.00

What percentage of the midterm exam scores was at least 80? 55%