Question 1

Published unemployment data is an example of

A)

Primary categorical data

B)

Secondary categorical data

C)

Primary numerical data

D)

Secondary numerical data

Question 2

A pie chart is best for

A)

Data reported in percentage form

B)

Continuous data

C)

Qualitative data

D)

Primary and secondary data

Question 3

If the upper inner and outer fences took values of 6 and 8 respectively, then a particular value of 7 is

A)

Within the interquartile range and not an outlier

B)

Within the range and not an outlier

C)

A potential outlier

D)

A potential extreme outlier

Question 4

In a left skewed distribution, the mean is

A)

Greater than the median because outliers drag the mean down in value

B)

Greater than the median because outliers drag the mean up in value

C)

Less than the median because outliers drag the mean down in value

D)

Less than the median because outliers drag the mean up in value

Question 5

Which of the following is least likely to be a random variable?

A)

The time that a Melbourne tram actually arrives at the tram stop

B)

The number of people squeezing onto an already overcrowded tram

C)

The number of times a head is obtained when tossing a coin

D)

The time at which the sun rises tomorrow

Question 6

The location and shape of a normal distribution are determined by the

A)

Mean and standard deviation of the distribution

B)

Relative sizes of the mean, median and mode of the distribution

C)

Number of modes

D)

Value of z