Arithmetic Mean and Quantitative Discrete
For each item below:
Identify the type of data (quantitative - discrete, quantitative - continuous, or qualitative) that would be used to describe a response.
Give an example of the data. • Quantitative – Discrete: Data obtained that are discrete numbers. e.g. 1, 2, 3... • Quantitative – Continuous: Data from a population that is assumed to be measured accurately. • Qualitative : Categorization or description attributes of a population. e.g. red, blue,etc • Number of tickets sold to a concert: Quantitative – Discrete. 100 tickets were sold • Amount of body fat: Quantitative – Continuous. My friend has 15% of body fat. • Favorite baseball team: Qualitative. Twins is Minnesota baseball team. • Time in line to buy groceries: Quantitative – Continuous, I took 20mins to but groceries. • Number of students enrolled at Evergreen Valley College: Quantitative – discrete 200 people enrolled at Evergreen Valley College. • Most watched television show: Quantitative – Discrete, 20000 people watched the TV show. • Brand of toothpaste: Qualitative, Colgate • Distance to the closest movie theatre: Quantitative – Continuous. The closest movie theatre is 2 miles from here. • Age of executive in Fortune 500 companies: Quantitative - Discrete, The age of executive in Fortune 500 companies is 25. • Number of competing computer spreadsheet software packages: Quantitative – Discrete, there are 4 competing computer spreadsheet packages
EXERCISE 2
Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:
Part-time Student Course Loads
# of Courses Frequency Relative Frequency Cumulative Relative Frequency
1 30 0.6 0.6
2 15 0.3 0.9
3 5 0.1 1
Fill in the blanks.
What percent of students take exactly two courses?
15/50=30%
What percent of students take one or two courses?
Fill in the
Identify the type of data (quantitative - discrete, quantitative - continuous, or qualitative) that would be used to describe a response.
Give an example of the data. • Quantitative – Discrete: Data obtained that are discrete numbers. e.g. 1, 2, 3... • Quantitative – Continuous: Data from a population that is assumed to be measured accurately. • Qualitative : Categorization or description attributes of a population. e.g. red, blue,etc • Number of tickets sold to a concert: Quantitative – Discrete. 100 tickets were sold • Amount of body fat: Quantitative – Continuous. My friend has 15% of body fat. • Favorite baseball team: Qualitative. Twins is Minnesota baseball team. • Time in line to buy groceries: Quantitative – Continuous, I took 20mins to but groceries. • Number of students enrolled at Evergreen Valley College: Quantitative – discrete 200 people enrolled at Evergreen Valley College. • Most watched television show: Quantitative – Discrete, 20000 people watched the TV show. • Brand of toothpaste: Qualitative, Colgate • Distance to the closest movie theatre: Quantitative – Continuous. The closest movie theatre is 2 miles from here. • Age of executive in Fortune 500 companies: Quantitative - Discrete, The age of executive in Fortune 500 companies is 25. • Number of competing computer spreadsheet software packages: Quantitative – Discrete, there are 4 competing computer spreadsheet packages
EXERCISE 2
Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:
Part-time Student Course Loads
# of Courses Frequency Relative Frequency Cumulative Relative Frequency
1 30 0.6 0.6
2 15 0.3 0.9
3 5 0.1 1
Fill in the blanks.
What percent of students take exactly two courses?
15/50=30%
What percent of students take one or two courses?
Fill in the