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
A graph that uses pictures or symbols to represent one or more data values
Pictograph
a graph that has a line through the plotted points. It shows how the change in one value is RELATED to the change in another value is a:
Line Graph
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?
data that can only take certain values; they are determined by counting.
A graph formed by line segments that join representing how data changes over time
Broke-line graph
A graph has a positive skew if the mean is ________
great than the median
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 Qualitative data
Non-numerical data that can be organized by categories.
A graph used to display the frequencies of continuous data (therefore no gaps between the bars) grouped in equal-sized intervals is called:
Histogram
True or False: A graph has a negative skew if the mean is less than the median.
True
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 continuous or discrete: Height of basketballers in a team
continuous
A graph that shows a mark (usually “X”) above the value on a number line for each entry in the data set
In a set of data where the mean is 19.5, the median is 19 and the mode is 18.5- is the skew positive, negative or normal?
Positive
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
Type of dogs: Golden retriever, Australian shepherd, Poodle...
are all examples of _______________ data
Qualitative
A graph that combines 2 or more graphs to compare 2 or more of data in related contexts
Multiple-bar Graph
Is Ms. Ferreira Mean?
No, she is above average! 🤪