Explain why increasing the sample size tends to result in a smaller sampling error when a sample mean is used to estimate a population mean. a. the above statement is incorrect, the sample size has no effect on the sampling error. b. the larger the sample size, the more closely the possible values of \bar{x} cluster around the mean of \bar{x} c. if the sample size is larger, the possible values of \bar{x} are farther from the mean of \bar{x},

Which problem would you use the following proportion to solve for? 24/x=40/100 a. what is 40% of 24? b. what percent is 24 of 40? c. twenty-four is 40% of what number? d. forty percent of 24 is what number?

Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.

What is the slope-intercept form for each equation in this system? compare the slopes and y-intercepts to describe the graph of the system. 3x - 4y = 28 4x + 10y = 20