Marcus arranged 16 pencils into an array. The array has 2 columns How many rows are there?

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95

Simplify: -2x 3 (-4) x 6 x (-5) x (-3) x 9