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gasoline since clean-air regulations have dictated the use of unleaded gasoline the supply of leaded gas in new york
twins twins are often born after a pregnancy that lasts less than 9 months the graph from the journal of the american
french consider the association between a students score on a french vocabulary test and the weight of the student what
modeling jumps here are the summary statistics for the olympic long jumps and high jumps displayed in the scatterplot
jumps 2004how are olympic performances in various events related the plot shows winning long-jump and high-jump
depression the september 1998 issue of the american psychologist published an article by kraut et al that reported on
winter in the city summary statistics for the data relating the latitude and average january temperature for 55 large
a statistics instructor created a linear regression equation to predict students final exam scores from their midterm
traffic highway planners investigated the relationship between traffic density number of automobiles per mile and the
look again at the correlation table for cars in the previous exercisea which two variables in the table exhibit the
cars one more time can we predict the horsepower of the engine that manufacturers will put in a car by knowing the
1 colorblind although some women are colorblind this condition is found primarily in men why is it wrong to say theres
the ranges inhabited by the indian gharial crocodile and the australian saltwater crocodile overlap in bangladesh
in the last exercise you saw that the linear model had some deficiencies let s create a better modela perhaps the
smoking and pregnancy 2003 the organization kids count monitors issues related to children the table shows a 50-state
the downward trend in smoking you saw in the last exercise is good news for the health of babies but will it ever stopa
logs not logarithms the value of a log is based on the number of board feet of lumber the log may contain a board foot
researchers studying how a cars fuel efficiency varies with its speed drove a compact car 200 miles at various speeds
orange production the table below shows that as the number of oranges on a tree increases the fruit tends to get
years to live 2003insurance companies and other organizations use actuarial tables to estimate the remaining life-spans
a 1996 study examined the growth of grapefruit trees in texas determining the average trunk diameter in inches for
its often difficult to find the ideal model for situations in which the data are strongly curved the table below shows
human development index in given exercise we saw that the united nations development programme undp uses the human
human development index revisited in exercise 35 we examined the relationship between loggdppc and hdi for 172
tour de france 2007 we met the tour de france data set in chapter 2 in just checking one hundred years ago the fastest