The mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate of the population mean. he selects and weighs a random sample of 49 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 68% confidence interval for the population mean

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.