On a test a student got 15 problems correct out of a total of 20 problems. What percent did the student get incorrect?

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15

Interpret the following expression (5y^2-7)^3/(2y)^2

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.