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Texas Instruments
9-12
45 Minutes
TI-Nspire™TI-Nspire™ CAS
3.2
Students will compare average U.S. gasoline prices per gallon for two years. Then they will use the mean and standard deviation (SD) and the median and interquartile range (IQR) to measure the center and spread of price data.
On page 1.3, students will find the mean and standard deviation for two sets of data.
Students will use the box plots of the two data sets to find the interquartile range and the median. They will determine which measure of center and spread best represents the data.
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