Mohammed Ahmed Ali 0170026
1.1 Four different beverages are sold at a fast food restaurant: soft drinks, tea, coffee, and bottled water.
Explain why the type of beverage sold is an example of a categorical variable
Explain why the type of beverage sold is an example of a nominal scaled variable
Categorical variables take values that fall into one or more categories. "Categorical variable is defined as data divided in categories as yes or no"(Chapter 1 Statistics for Manager 7th Edition). As there are 4 different types of drinks, they would all fall into their own categories rather than numerical.
A nominal scale classifies data into distinct categories in which no ranking is implied. The type of drinks sold is an example of a nominally scaled variable as there are no rankings involved
1.2 U.S. businesses are listed by size: small, medium, and large. Explain why business size is an example of an ordinal scaled variable
An ordinal scale classifies data into distinct categories in which ranking is implied. Ordinal scaling is a stronger form of measurement than nominal scaling because an observed value classified into one category possesses more of a property than does an observed value classified into another category.
1.3 The time it takes to download a video from the Internet is measured. Explain why the download time is a continuous numerical variable Explain why the download time is a ratio scaled variable
Measurement is the PROCESS whereby a feature is evaluated. Those features can be things like height or weight, or they could be more psychological in nature, like intelligence or anxiety levels. In