Suppose there are 25 pieces of paper in a box, labelled with the numbers 1 to 25. Imagine picking one of the numbers at random, without looking. The diagram below groups the possible outcomes into odd numbers and multiples of 4.

One of your classmates is calculating the probability that the number we pick will be odd and a multiple of 4. But they made a mistake in their calculation.

Which of the statements below describes your classmate's mistake?

The Venn diagram below shows Sets   and . They are in a sample space, . Each region of the diagram has a number showing how many outcomes are in that region. For example, there are 3 outcomes which are not in either  or

What is the number of outcomes in Set   ?

A standard pack of cards has 52 cards. There are 13 spades, 13 hearts, 13 diamonds, and 13 clubs. A student finds a standard pack of cards and then takes one card from the pack. What is the probability that the card is a black card?

A standard pack of cards has 52 cards. There are 13 spades, 13 hearts, 13 diamonds, and 13 clubs. A student finds a standard pack of cards and then takes one card from the pack. What is the probability that the card is a King?

Lisa is working in a computer store. She sells the following number of computers each month:

Which of the following is the correct box-and-whisker plot of Lisa's sales?

Describe the probability below, using the probability scale:

Students in a biology class are doing an experiment about growing plants. They plant a large number of seeds and then track how many days it takes for the seeds to sprout out of the ground. The histogram below shows the data for the 48 seeds which sprouted. What would be the best measure of central tendency for this data?

A Grade 10 mathematics teacher wants to determine the consistency of her students' performance on their last five tests. The following are the percentages each student scored:

Student A: 78, 85, 92, 75, 88 

Student B: 60, 95, 80, 75, 90 

Student C: 85, 85, 85, 85, 85

Determine the range of Student B, results.

The histogram below shows 19 data values grouped into 5 intervals.

In what interval is the median value?