You perform an experiment for your science project to determine how well plants grow under different light sources. Of the 30 plants in the experiment, 12 receive visible light, 15 receive ultraviolet light, and 6 receive both visible and ultraviolet light. What is the probability that a plant in the experiment receives visible or ultraviolet light?  Express your first answer as a simplified fraction.The probability that a plant receives visible or ultraviolet light is , or %

For a class assignment, Andrew wanted to study whether or not the color of a person's car correlates with the color of his or her hair. He spent an hour at a stoplight recording the color of each car that passed and the hair color of its driver.Light hair Dark hairLight car 2 2Dark car 2 4What is the probability that a randomly selected driver has a dark car given that the driver has dark hair?Simplify any fractions.

From a lot of 30 bulbs which include 6 defectives, a sample of 4 bulbs is drawn at random with replacement. Find the probability distribution of the number of defective bulbs.

Eva conducted a blind taste test on some of her friends in order to determine if organic fruits taste better than non-organic fruits. Each friend ate one type of fruit.The probability that a friend tasted apples is 0.48, the probability that a friend preferred non-organic is 0.8, and the probability that a friend tasted apples and preferred non-organic is 0.46.What is the probability that a randomly chosen friend tasted apples or preferred non-organic?Write your answer as a whole number, decimal, or simplified fraction.Submit

In a school, 30 % of the students study math and science, 70 % of the students study science. What is the probability of students studying math, given that the student is already studying science.a42.8%42.8%b23.33%23.33%c40%40%d63.8%63.8%

A portable lamp has 8 batteries, 3 of which are defective. If 2 are selected at random with replacement, find the probability that both are defective. Round your answer to two decimal places.