Identify Each of the Following Studies as Using Either Descriptive

question 16

Essay

Identify each of the following studies as using either descriptive statistics or inferential statistics.
A.Calculating the relative frequency of Holden Commodore SV6 cars passing by your house
between 7pm and 8pm this evening.
B.Estimating the proportion of households in Melbourne that have at least two dependents, from a random sample of 100 Melbournian households.
C.Measuring the fuel efficiency of five brand new Holden Commodore SV6 cars in order to find out whether the average fuel consumption of this make and model is better than 10L/100km.
D.Calculating the proportion of female students in a business statistics class.
E.Estimating the average age of students at La Trobe University from a sample of 200 randomly
selected students.

---

Definitions:

Variable-ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, leading to high and steady rates of response.

Fixed-ratio

A schedule of reinforcement where a response is rewarded only after a specified number of responses.

Fixed-interval

Refers to a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed, commonly used in behavioral psychology.

Variable-interval

A timing schedule in operant conditioning where reinforcement is provided after an unpredictable time interval, leading to a steady rate of response.