Stats
Define Probability
The chances or likelihood of an event taking place.
What types of graphs use pictures or symbols
Pictograph
Define Probability
# of ways a successful outcomes divided by the total outcomes
what is Mean
arithmetic average
What is the difference between theoretical and experimental probability?
Theoretical = Mathematical probability
Experimental = actual numbers from an experiment.
List some ways we organize data.
Graphs
What type of graph is best for displaying percentages?
Pie Graph or Circle Graph
What does % mean
divided by 100
How do we find the median?
order data least to greatest and find the center value
Name 3 things you MUST have on a graph
Title, labels, data, scale etc.
List some ways we collect data
Polls, Surveys etc.
What type of graph is used to compare two different populations on the same topics?
Double Bar Graph
How many outcomes dose rolling one die have
6
What is the mode of data
the data repeated most often
Name the two axis on the coordinate plane
X and Y
Where are statistics used?
Everywhere
What type of graph is best for displaying a "trend"?
Line Graph
How many outcomes in a deck of cards are spades?
13
define standard deviation
The average distance between data
What is a "population"?
Who is being surveyed.
What are outliers?
Data that lie outside the rest of the data
How can graphs be misleading?
Skew the data to represent the data incorrectly
What is the probability of rolling a 12 on two dice?
1/36
How are odds and probability different?
Odd are # of success over # of failures
Name three types of bar graphs
Horizontal, vertical, double