The mean price of new homes from a sample of housed is $155,000, with a standard deviation of $15,000. calculate the z-scores to determine if the following house prices are unusual. round up each z-score to two decimals; write yes or no to the right of each z-score to indicate if it’s usual or unusual. (a) $200,000 (b) $55,000 (c) $175,000 (d) $122,000

An equation where variables are used to represent known values—function notation true or false

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅