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Scatter Plots
Models in Math
Statistics
Normal Distribution
Samples
100
What type of correlation in a graph is one that increases?
What is positive correlation.
100
What is an expression, equation, or function that represents data or a real world situation?
What is an algebraic model.
100
What are numerical values used to summerize and compare sets of data?
What are statistics.
100
What is a model by a bell shaped curve called a normal curve that is symmetric about the mean?
What is normal distribution?
100
What is the type of sample where members of a popultion can volunteer to participate in?
What is a self-selected sample.
200
What is the type of correlation in a graph that decreases?
What is negative correlation.
200
What is a logical conclusion that is derived from known data?
What is an inference.
200
What is a number used to represent the center/middle of a set of data values?
What is a measure of central tendency.
200
What is normal distribution modeled by?
What is a normal curve.
200
What is the type of sample where members of a popultion are chosen is a specific order? ex. every other person
What is a systematic sample.
300
What is a number from 1 to -1 that measures how well a line fits a set of data pairs?
What is a correlation coefficient.
300
What is the process of finding the best-fitting quadratic model for a set of data?
What is quadratic regression.
300
What is the typical difference between a data value and the mean?
What is standard deviation?
300
What is the normal distribution with mean 0 and standard deviation 1?
What is standard normal distribution.
300
What is the type of sample where easy to reach members are selected?
What is a convienence sample.
400
What is a line that lies as close as possible to all data points?
What is the best-fitting line.
400
What is finding a line or curve that matches a set of data points?
What is curve fitting.
400
What is the standard deviation of: 8,9,15,25,28,16,24,18,21,14,16,10?
What is 6.2.
400
What is the number of standard deviations the x-value lies above or below the mean?
What is the z-score.
400
What is a sample that overrepresents or underrepresents a part of a popultion? ex. Asking people in an icecream shop if they should open another shop.
What is a biased sample.
500
What is a linear model used to fit a line to a set of data?
What is a median-median line.
500
What is a graph of set data points?
What is a scatter plot.
500
What is a statistic that tells you how dispersed data values are?
What is the measure of dispersion.
500
What is the percentage of the largest percentile in the normal curve?
What is two 34% sections or 68%.
500
What is the limit on howw much the respones of a sample would differ from respones of a population?
What is the margin of error.