13. The population mean annual salary for registered nurses is $59100 with standard deviation
$1800. A random sample of 40 registered nurses was drawn from this population; the mean
annual salary of this sample is $59250.
Assume that the annual salaries for registered nurses are normally distributed. What is the
probability that the annual salary of one randomly selected nurse is $59250 or more?
A. 0.4668
B. 0.4134
C. 0.4941
D. 0.4070

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!