Ming and Cristina performed an experiment in which they tossed a foam polyhedron. Each face of the polyhedron is colored black, purple, or white. Black face 4
purple face 20
white face 16

What is the experimental probability that the polyhedron will not land on a white face?
24% B. 40% C 50% D. 60%

Show how you arrived at your answer.

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?