How to solve these problems of probability? what formula is needed?
1. A certain brand of grass seed has a probability of 86 percent germination. If a lawn care specialist than 9,000 seed plants, find the number to germinate. 2. In the dice game with two dice, a person wins the first roll if a 7 or 11 is rolled. Find the probability of winning the first roll. 3. When interviewed 350 students, 186 stated their preference for presentation conference to a discussion group. Find the probability that if a student is randomly selected, he or she prefers the conference presentation. 4. A flashlight has 6 batteries, two of which are defective, if two of which are selected at random without replacement, find the probability that both are defective. 5. A car dealer believes that the probability of making a sale of 0.23. If she spoke with four customers today, find the probability of four cars sold. Kindly solutions show
1) 86/100 (3000) 2) a total of 36 comb. problems 8 / 36 3) 186 / 350 4) 1/6c2 50) 0.23 * 0.23 * 0.23 * 0.23
Defective 3-LED Dynamo Battery-free Flashlight – replacement will be sent by DealExtreme
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