Suppose a simple random sample of size nequals49 is obtained from a population with mu equals 78 and sigma equals 7. ​(a) Describe the sampling distribution of x.
​(b) What is P (x > 79.7)?
(c) What is P (× < 75.75)?
(d) What is P (76.95 < x < 80)?

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Solve 3x-18=2y and 5x-6y=6 by elimination show work