According to the table below, what is the probability that the grade of a student chosen at random will be a B or higher? Grade A2/35 B13/35 C12/35 D4/35 F Probability A1/7. B.4/7 C.2/7 D.3/7

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i