What are the W's?/What are the questions necessary before analyzing data?
100
1. MAKE A PICTURE!!!
2. MAKE A PICTURE!!!
3. MAKE A PICTURE!!!
What are the three rules of data analysis?
100
Shape is how a chart appears, center can be measured as mean or median, and range can be measured by the range, standard deviation, or IQR.
What are shape, center, and spread?
100
The five number summary represented by a graph.
What is a box plot?
100
(value-mean value)/(standard deviation)
What is the formula for z-score?
200
Characteristics recorded about each individual.
What are variables?
200
A pie chart is used to compare percents and a bar chart is used to compare proportions
What is the difference between a pie chart and a bar chart?
200
Histogram shows easily understood summary of distribution of quantitative variable, while a stem and leaf plot shows individual values.
What is difference between a histogram and a steam-and-leaf plot?
200
Rescaling is necessary.
What should be done to make data fit a graph better?
200
IQR does not change with this. The 5 number summary does change.
What happens to the 5 number summary and IQR when a standard value is added to each quantitative datum?
300
A variable that is used to not describe numbers.
What is a catergorical variable?
300
A relative frequency table gives the percents and a frequency table gives counts or numbers of individuals in a category.
What is difference between a relative frequency table and a frequency table?
300
Histogram shows easily understood summary of distribution of quantitative variable, while a stem and leaf plot shows individual values.
What is the difference between a histogram and a steam-and-leaf plot?
300
Look at the similarities between their minimums, maximums, Q1, Q3, and the median.
How does one compare box plots?
300
The 5 number summary and IQR are multiplied when this happens.
What happens to the 5 number summary and IQR when a standard value is multiplied by each quantitative datum?
400
A variable that is used to describe numbers
What is a quantitative variable?
400
An individual subject's category has no effect on the category another subject falls into.
What is independence?
400
This is typified by a bell curve.
What does a normal model look like?
400
IQR, range, standard deviation
What are measures of distribution?
400
Skewed left or right, unimodal, binomial, normal
What are terms used to describe a histogram model?
500
A large sample is best; it reduces bias, and gives a better insight of the population.
Which is better, a large sample or a small sample, and why?
500
The marginal distribution is the frequency distribution displayed in the margins of a contingency table. A conditional distribution shows distribution of one variable when an individual meets the conditions of another variable.
What is the difference between and marginal and conditional distribution?
500
Daily Double: Minimum, Maximum, Q1, Q3, and median