Which of the following correctly describes the nature of discrete quantitative variables? They are characteristics possessed by persons or objects, called elementary units, in which we are interested. They can assume values only at specific points on a scale of values, with inevitable gaps between successive observations. When dealing with such variables, we can count all possible observations and, with some exceptions, that count leads to a finite result. both (a) and (c) all of these Identify the following quantitative variables as discrete or continuous. (a) population in a particular area of Canada i) discrete ii) continuous (b) weight of newspapers recovered for recycling on a single day i) discrete ii) continuous (c) time to complete a sociology exam i) discrete ii) continuous (d) number of consumers in a poll of 1000 who consider nutritional labeling on food products to be important i) discrete ii) continuous (e) number of repetitions a powerlifter does on a bench press i) discrete ii) continuous 1) Identify each variable as quantitative or qualitative. (a) amount of time it takes to assemble a simple puzzle i) quantitative ii) qualitative (b) number of students in a grade 1 classroom i) quantitative ii) qualitative (c) rating of a newly elected politician (excellent, good, fair, poor) i) quantitative ii) qualitative (d) province or territory in which a person lives i) quantitative ii) qualitative (e) the number that lands on a dice roll i) quantitative ii) qualitative 1) Which of the following is the best type of chart for comparing two sets of qualitative data? a) a dotplot b) a stem and leaf plot c) a bar chart d) a line chart 1) Which of the following choices is a statement obtained by applying descriptive statistics to an experiment in which the running speed of four dogs, A, B, C, and D, was measured? a) Dog B runs faster than dog C. b) One dog runs at 42 km/h. c) Dogs A and C run at the same speed. d) The average running speed of the four dogs is 28 km/h.

1. Which of the following correctly describes the nature of discrete quantitative variables?
2. They are characteristics possessed by persons or objects, called elementary units, in which we are interested.
3. They can assume values only at specific points on a scale of values, with inevitable gaps between successive observations.
4. When dealing with such variables, we can count all possible observations and, with some exceptions, that count leads to a finite result.
5. both (a) and (c)
6. all of these

1. Identify the following quantitative variables as discrete or continuous.

(a) population in a particular area of Canada

1. i) discrete
2. ii) continuous

(b) weight of newspapers recovered for recycling on a single day

1. i) discrete
2. ii) continuous

(c) time to complete a sociology exam

1. i) discrete
2. ii) continuous

(d) number of consumers in a poll of 1000 who consider nutritional labeling on food products to be important

1. i) discrete
2. ii) continuous

(e) number of repetitions a powerlifter does on a bench press

1. i) discrete
2. ii) continuous

1) Identify each variable as quantitative or qualitative.

(a) amount of time it takes to assemble a simple puzzle

1. i) quantitative
2. ii) qualitative

(b) number of students in a grade 1 classroom

1. i) quantitative
2. ii) qualitative

(c) rating of a newly elected politician (excellent, good, fair, poor)

1. i) quantitative
2. ii) qualitative

(d) province or territory in which a person lives

1. i) quantitative
2. ii) qualitative

(e) the number that lands on a dice roll

1. i) quantitative
2. ii) qualitative

1) Which of the following is the best type of chart for comparing two sets of qualitative data?

1. a) a dotplot
2. b) a stem and leaf plot
3. c) a bar chart
4. d) a line chart

1) Which of the following choices is a statement obtained by applying descriptive statistics to an experiment in which the running speed of four dogs, A, B, C, and D, was measured?

1. a) Dog B runs faster than dog C.
2. b) One dog runs at 42 km/h.
3. c) Dogs A and C run at the same speed.
4. d) The average running speed of the four dogs is 28 km/h.