Question

1. in each study, the data collected is what level of measurement? a) letter grade (a,b,c,d,f): select an answer b) temperature in celsius: select an answer c) number of traffic tickets: select an answer d) agreeableness rating on a strongly disagree/disagree/neither disagree nor agree/agree/strongly agree scale: select an answer e) marital status: select an answer 2) are the following variables discrete or continuous? a) a persons exact age: select an answer b) the number of cars served at a fast food drive - thru: select an answer c) the weight of an elephant: select an answer

Explanation:

1.

• a) Letter grades have an order (A > B > C > D > F), so it's ordinal.
• b) Temperature in Celsius has a meaningful zero - point (0°C is not an arbitrary starting point) and differences are meaningful, so it's interval.
• c) The number of traffic tickets is a count, and ratios are meaningful (e.g., having 4 tickets is twice as many as 2 tickets), so it's ratio.
• d) The agreeableness rating has an order (Strongly Disagree < Disagree < Neither < Agree < Strongly Agree), so it's ordinal.
• e) Marital status (e.g., single, married, divorced) is a classification with no order, so it's nominal.

2.

• a) A person's exact age can take on any value within a range (e.g., 30.5 years), so it's continuous.
• b) The number of cars served is a count and can only take on whole - number values, so it's discrete.
• c) The weight of an elephant can take on any value within a range (e.g., 3.54 tons), so it's continuous.

Answer:

1.

• a) Ordinal
• b) Interval
• c) Ratio
• d) Ordinal
• e) Nominal

2.

• a) Continuous
• b) Discrete
• c) Continuous