Stats
Define Statistics
The science of collecting, organizing and analizing data
What types of graphs use % of the whole
PIE Chart, Bar Graph, Histogram
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 has whiskers?
Box and Whisker Plot
What does % mean
divided by 100
How do we find the median?
order data least to greatest and find the center value
What is a tree diagram used for?
Counting outcomes
List some ways we collect data
Polls, Surveys etc.
What type of graph has parts of trees?
Stem and Leaf Plot
How many outcomes dose rolling one die have
6
What is the mode of data
the data repeated most often
Define the shape of a normal distribution
Bell curve
Where are statistics used?
Everywhere
What type of graph best shows how many times a data is repeated?
Frequency chart
How many outcomes in a deck of cards are spades?
13
define standard deviation
The average distance between data
What did Pascal develop?
Pascals triangle
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
What is the fundamental counting principal?
A method for counting outcomes