Set up a frequency distribution table and calculate the relative frequency for the following quiz scores that Matt achieved in his Algebra course

1. a) Set up a frequency distribution table and calculate the relative frequency for the following quiz scores that Matt achieved in his Algebra course:

Matt’s Quiz Scores: 85, 88, 92, 71, 100, 78, 61, 60, 89, 99, 100, 65, 98, 85, 92, 79, 81, 85, 100, and 100.

Use the following frequency intervals:

60 – 70

70 – 80

80 – 90

90 – 100

 

1. b) Calculate the variance and standard deviation for Matt’s quiz scores.

   Suggestion: set the problem up in steps within a table like the textbook illustrates.

 

Question 3: (10 Points)

Patrick’s Average Sales:

 

Monday $4,099

Tuesday $6,700

Wednesday $0

Thursday $10,000

Friday $9,007

Saturday $9,776

Sunday $0

 

Is it better for Patrick to earn 7.5% based on his average daily sales or a flat $4,000 for the week?  In your explanation, please show your calculations.