Economics y12 cbt

To find the ______ you add up all the numbers and then divide by how many numbers you have.

• mean

• median

• mode

• range

The masses of six children are 34.5 kilograms, 42.6 kilograms, 39.8 kilograms, 40.1 kilograms, 53.4 kilograms, and 33.8 kilograms. Find the mean mass.

• 40.7

• 40

• 41

• 50

Which of the following is a measure of variability?

• mean

• median

• mode

• standard deviation

The standard deviation of a data set is 4, what is the variance?

• 2

• 4

• 16

• 8

Find the median of these numbers: 4, 2, 7, 4, 3

• 2

• 7

• 5

• 4

Which determinant of demand is this?

• Complements

• consumer income

• Substitutes

• none of the above

A change in the price of a good causes people to buy more or less of an item. This best describes the concept of

• change in quantity demanded

• change in demand

• elasticity

• demand curve

if the demand for a good increases when people's incomes increase, the good is

• an inferior good

• The law of demand is violated

• the good's demand curve shifts to the left

• the good is a normal good

The price of coffee increases and people switch to drinking tea. The determinant of demand is

• Price of Related Goods (Complemets)

• Price of Related Goods (Substitutes)

• Consumer Preferences/Tastes

• Income

What is the only factor that causes a change in quantity demanded (Slide) along a demand curve?

• population

• income

• price

• taste and preferences