Mean and Mode
How do you find the mean of a set of numbers?
Add all the numbers together then divide by the number of numbers that were added together.
How do you find the median of a set of number?
Putting the data from smallest to largest and then finding the middle number. If there are 2 numbers in the middle add them together and divide by 2
What is continuous data?
Numerical Data that can take any value
What is categorical data?
A type of data which is sorted into a set of categories relating to the topic of the survey
Number of scores?
Stem | Leaf key 2 | 8 is 28kg
0 | 1 2 4 5
1 | 1 1 5 6 7
2 | 0 0 0 5
13
What is the mode?
The score with the highest frequency.
Most common number
How do you find the range of a set of numbers?
The difference between the largest and the smallest number
What is discrete data?
A numerical type of data that includes a whole that are fixed values
Is a pie chart best for categorical or numerical data?
Categorical
What is the Range?
Stem | Leaf key 2 | 8 is 28kg
0 | 1 2 4 5
1 | 1 1 5 6 7
2 | 0 0 0 5
25 - 1 = 24kg
What is the mean of this set of numbers?
19 21 23 17 25 15
20
What is the range of this set of numbers?
64 46 89 91 21 34 65 71
70
What is the difference between continuous and discrete data?
Discrete data is a finite value whereas continuous data has an infinte number of possible values
Classify the following as either categorical, continuous numerical or discrete numerical: The number of houses on a street.
Discrete numerical
What is the Median?
Stem | Leaf key 2 | 8 is 28kg
0 | 1 2 4 5
1 | 1 1 5 6 7
2 | 0 0 0 5
20kg
What is the mode form this set of numbers?
4 10 9 8 10 4 10 15 15 16 16
10
What is the median of this set of numbers?
34 27 90 45 60
45
Classify the following as either categorical, continuous numerical or discrete numerical: Height of basketballers in a team
continuous
Classify the data collected using a 5-point scale, such as: (1 - strongly agree, 2- agree, 3 - neither, 4 -disagree, 5 - strongly disagree)
Categorical
What is the Median?
Stem | Leaf key 2 | 8 is 28kg
0 | 1 2 4 5
1 | 1 1 5 6 7
2 | 0 0 0 5
15kg
Find the mean and the mode of this set of numbers
2 8 17 3 14 15 6 25 2 8
Mean: 10
Mode: 8
What is the median of this set of numbers?
64 46 89 90 21 34 65 71
64.5
Classify the following as either categorical, continuous numerical or discrete numerical: The minimum and maximum temperatures daily
Continuous
Classify the following as either categorical, continuous numerical or discrete numerical: Shoe sizes of students in a class
Are Math teachers Mean? Why?
No, the are above average! 🤪