The dot plots below show the number of questions missed on a six-question quiz for two of Mr. Barker's classes. What is the difference of the mean number of questions missed between the two classes?

*15 pts* the graph of an exponential function of the form y = f(x) = ax passes through the points and the graph lies the x-axis. first line choices: (0, a) (0, 1) (0, 2) (0, -1) second line choices: (1, 0) (1, a) (1, 1) (1, -2) third line choices: above below on the

In a fifth grade class, 3/5 of the girls have brown hair. of the brown-haired girls, 3/4 of them have long hair. of the girls with long brown hair, 1/3 of them have green eyes. what fraction of the girls in the class have long brown hair?

For the year 2010, 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal income tax return. the mean amount of deductions for this population of taxpayers was $16,642. assume that the standard deviation is σ = $2,440. if required, round your answer to two decimal places. (a) what are the sampling distributions of x for itemized deductions for this population of taxpayers for each of the following sample sizes: 30, 50, 100, and 400? (b)what is the advantage of a larger sample size when attempting to estimate the population mean?