In 2018 the scores of students on the May SAT had a normal distribution with mean u = 1450 and a standard deviation of o = 120. a. What is the probability that
a single student randomly chosen from all those taking the test scores 1500 or higher?

b. If a sample of 50 students is taken from the population, what is the probability that the sample mean score of these students is 1470 or higher?

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Find the value of x for which line a is parallel to line b

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply