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Find variance and standard deviation for matt quiz scores

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Reference no: EM131131138

Business Statistics Assignment

Question 1:

Find the mean, median and mode of the following:

Presto Printing Company sales for the month of February.
(NOTE: The company is closed on Sundays.)

February 2: $4,694
February 3: $5,964
February 4: $3,309
February 5: $3,106
February 6: $7,124
February 7: $2,149
February 9: $3,123
February 10: $4,128

February 11: $3,198
February 12: $2,198
February 13: $6,287
February 14: $1,123
February 16: $4,598
February 17: $3,987
February 18: $3,009
February 19: $3,098

February 20: $5,980
February 21: $3,209
February 23: $6,541
February 24: $3,098
February 25: $4,598
February 26: $4,873
February 27: $9,876
February 28: $5,878

Question 2:

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

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: 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.

Reference no: EM131131138

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