STA108: Tutorial 1

Which of the following results in categorical data?

• Measuring in litres the petrol tank capacity of cars.

• Counting the number of cars that pass through a toll-booth.

• Counting the number of red cars, white cars and blue cars in a large parking site.

• T-shirt classified into large, medium or small.

Which of the following results in numerical data?

• Respondents asked if they prefer to have white hair, black hair or brown hair.

• T-shirt classified into large, medium or small

• Types of hair cream used by students in a school.

• Counting the number of cars that pass through a toll-booth.

State whether each of the following statements is TRUE or FALSE

A study of statistics can be divided into two sections: qualitative and quantitative methods.

• TRUE

• FALSE

State whether each of the following statements is TRUE or FALSE

Inferential statistics consists of methods dealing with collection, tabulation, summarization and presentation of data.

• TRUE

• FALSE

State whether each of the following statements is TRUE or FALSE

Ordinal scales permits comparisons of scores or categories in terms of smaller or larger, higher or lower ,or, best or worst

• TRUE

• FALSE

State whether each of the following statements is TRUE or FALSE

Cumulative Grade Point Average (CGPA) score of a student is a qualitative variable and its level of measurement is an ordinal scale.

• TRUE

• FALSE

State whether each of the following statements is TRUE or FALSE

Rating of speakers as excellent, good, average or poor is an ordinal scale of measurement.

• TRUE

• FALSE

Classify the statement below according to its level of measurement.

Rating of movies as 1 star,2 stars,3 stars,4 stars and 5 stars.

• Nominal

• Ordinal

• Interval

• Ratio

Classify the statement below according to its level of measurement.

Classification of automobiles as subcompact, compact, standard and luxury.

• Nominal

• Ordinal

• Interval

• Ratio

Classify the statement below according to its level of measurement.

Number of cups of coffee served at a restaurant.

• Nominal

• Ordinal

• Interval

• Ratio