Find Pr (A ∩ B)
2/10 or 1/5 or 0.2 or 20%
Looking at the frequency table, which score is the mode?
3
What is the median?
46
What is the range?
28
Describe the distribution of data
The distribution is positively skewed
How many people were surveyed?
11
What is the median for Chicago?
10
What is the median for Seattle?
12.5
What is one difference between a histogram and a column graph?
No gaps between columns
Two 6-sided dice are rolled and the numbers added. What is the probability of getting a sum of 2?
1/36 or 0.028
A normal 6-sided die is rolled 120 times. How many 6's would you expect to get?
20
A biased die is rolled 120 times and the results are shown in the table. What is the relative frequency of getting a number greater than 4?
40/120 or 3/4 or 0.75
A coin is flipped and a die rolled. All outcomes are shown in the tree diagram. What is the probability of getting a "Heads" and an even number?
3/12 or 1/4 or 0.25
The 2-way table shows results from students in a class. What is the probability of randomly picking someone who is left-handed?
11/37
Billy has won 5 of his last 30 chess games. What is the relative frequency of him winning the next game? (Answer as a decimal to 2 places)
0.17
Looking at the histogram, what is the size of each class interval?
5
