General
Fun Question!
Why did the student get upset when the teacher called her average?
It was a 'mean' thing to say
Fun Question!
What is a math teacher's favorite animal?
A Pi-thon!
Fun Question!
What shape do you always have to be careful of?
A trap-ezoid!
Fun Question!
Why can't a nose be 12 inches long?
Because then it would be a foot!
Fun Question!
What's a math teacher's favorite season?
SUMmer
What is descriptive statistics?
Describes a current situation
What is this symbol?
X
Observed Data Value
Describe random sampling
assigning random numbers and selecting randomly, such as from a hat or table
Qualitative or Quantitative?
Hours Slept
Quantitative
Descriptive or Inferential?
The average grade in Prob and Stats last semester was a 94%.
Descriptive
What is inferential statistics?
Makes a prediction about the future
What is this symbol?
n
Sample Size/ Number of Data Values
What is cluster sampling?
Dividing the population into intact groups (clusters) and selecting whole groups as parts of the sample
Descriptive or Inferential?
Studies suggest the cost of college tuition will rise by 3.25% for next school year.
Inferential
Discrete or Continuous?
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Discrete
What is statistics?
Collecting and analyzing data to draw conclusions and in some cases make predictions
Answers may vary- need to show understanding
What is this symbol?
mu
Population Mean
What is Systematic sampling?
Selecting every kth number after starting on a random number (like testing every 15th table for defects)
What are any/all misuses of statistics in the following statement?
5 out of 6 the creston teachers agree that students have been acting like toddlers this week
"5 out of 6" = suspect samples
What level of measurement is used?
Class rankings (ex valedictorian, salutatorian, etc.)
Ordinal
What's the difference between a sample and a population?
Population is the group being studied and the sample is a group from the population that data is gathered from
What is this symbol?
Sigma
Summation
What is Stratified sampling
Dividing the population into groups (strata) based on qualities and selecting the sample by taking some from each group
What level of measurement is used?
Phone battery percentages
Ratio
zero means no battery or no charge
What are any/all misuses of statistics in the following statement?
This weightloss program may help you lose weight 10 times faster!
"may help" = implied connections
"10 times faster" = detached statistics