Mean, Median, Mode
Find the mean: 4, 6, 8
6
How often something occurs in a data set.
Frequency
A fair coin is tossed. Probability of heads.
1/2
The entire group being studied is called this.
Population
List the sample space for flipping a coin.
{H, T}
Find the median: 3, 5, 7, 9, 11.
7
The middle value in an ordered data set.
Median
A six-sided die is rolled. Probability of rolling a 4.
1/6
Choosing every 10th student from a list is this type of sample.
Systematic
How many outcomes are in the sample space when rolling a six-sided die?
6
Find the mode: 2, 4, 4, 5, 5, 5, 8.
5
A graph that uses bars to show frequencies of categories.
Bar graph or Histogram
A bag contains 3 red and 2 blue marbles. Probability of selecting a blue marble.
2/5
Surveying only your friends about school lunches may cause this problem.
Bias
List the sample space for spinning a spinner with red, blue and green sections.
{Red, Blue, Green}
Find the mean: 10, 12, 14, 16, 18.
14
The difference between the highest and lowest values in a data set
The range
Two coins are tossed. Probability of getting two heads.
1/4
A school wants to know students' favourite sport. Surveying 50 randomly selected students is an example of this.
Random
How many outcomes are in the sample space for two coin tosses?
4
A data set has a mean of 20. There are 5 values. What is the total of all values?
100
An unusual value that is much higher or lower than the rest of the data.
Outlier
A spinner has 8 equal sections. Three are green. Probability of landing on green.
3/8
Which provides more reliable information: surveying 10 students or 200 students?
200
List all outcomes when rolling a die and flipping a coin.
{1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T, 6H, 6T}