A normal 6-sided die is rolled 120 times. How many 6's would you expect to get?
20
What is the median for Seattle?
12.5
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
What is the median for Chicago?
10
Find Pr (A ∩ B)
2/10 or 1/5 or 0.2 or 20%
How many students like dogs AND cats but not birds?
6
How many class intervals are there?
6
Describe the distribution of data
The distribution is positively skewed
What is the median?
46
Describe the distribution of data
It is a Bi-Modal distribution
Looking at the histogram, what is the size of each class interval?
5
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
Looking at the frequency table, which score is the mode?
3
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
What is the mean of the following data set: 3, 8, 8, 8, 11, 17, 17
10.29
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
A survey question asks how many cars you own. What type of data is being collected? (Continuous, Discrete, Ordinal or Nominal)
Discrete
How many people were surveyed?
11
What is the range?
28
A coin is flipped and a die rolled. All outcomes are shown in the tree diagram. What is the probability of getting a 5 on the die?
2/12 or 1/6 or 0.17
What is one difference between a histogram and a column graph?
No gaps between columns
Looking at the histogram, how many trees were included in the results?
31
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