What percentage of students have a monthly family income between $30.01 and $50 per person?

(Reports to 2 decimal places and include appropriate units)

What shape is the distribution for monthly

family income, and what

does this tell you about the relative wealth of students in the dataset?

How many students have a monthly family income of over $140 per person?

How

many students have a monthly family income less than or equal to $50 per person?

Which category below is the most frequent income

(monthly family income per person (US$)) range?

A sample of voters has been asked to rank two political leaders as to their appeal on a continuous scale of 0 to 10 (0=very unappealing, 10=very appealing). The probability density function of the results is shown below. Select the best interpretation of these results.

In the picture below there are two distributions for separate countries. The distributions represent the height of girls at age 18 measured in metres. Select the answer which best interprets these results. 

What is the probability that someone who is 45-49 years old is unemployed? 

That is, what is ?

(Report as a probability to 4 decimal places, e.g. 0.6521)

What is the conditional probability that a person is in the 20-24 age group given they are unemployed? 

That is, what is ?

(Report as a probability to 4 decimal places, e.g. 0.6521)