Question

In: Statistics and Probability

1. If a seed is planted, it has a 85% chance of growing into a healthy...

1. If a seed is planted, it has a 85% chance of growing into a healthy plant.

If 10 seeds are planted, what is the probability that exactly 2 don't grow?

2. A poll is given, showing 40% are in favor of a new building project.

If 6 people are chosen at random, what is the probability that exactly 4 of them favor the new building project?

3. A poll is given, showing 70% are in favor of a new building project.

If 10 people are chosen at random, what is the probability that fewer than 6 of them favor the new building project?

4. A poll is given, showing 30% are in favor of a new building project.

If 7 people are chosen at random, what is the probability that greater than 6 of them favor the new building project?

Solutions

Expert Solution


Related Solutions

1. If a seed is planted, it has a 85% chance of growing into a healthy...
1. If a seed is planted, it has a 85% chance of growing into a healthy plant. f 10 seeds are planted, what is the probability that exactly 4 don't grow? 2.Suppose that 37% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? 3.A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation...
If a seed is planted, it has a 65% chance of growing into a healthy plant....
If a seed is planted, it has a 65% chance of growing into a healthy plant. If 12 seeds are planted, what is the probability that exactly 4 don't grow? A manufacturing machine has a 6% defect rate. If 4 items are chosen at random, what is the probability that at least one will have a defect? About 3% of the population has a particular genetic mutation. 500 people are randomly selected.Find the mean for the number of people with...
If a seed is planted, it has a 45% chance of growing into a healthy plant....
If a seed is planted, it has a 45% chance of growing into a healthy plant. If 144 randomly selected seeds are planted, answer the following. a) Which is the correct wording for the random variable?   Select an answer rv X = the probability that a randomly selected seed grows into a healthy plant rv X = grows into a healthy plant rv X = a randomly selected seed that grows into a healthy plant rv X = the number...
Your neighbor has planted a bed of pink snapdragons in his yard. As the growing season...
Your neighbor has planted a bed of pink snapdragons in his yard. As the growing season progresses, he notices that some white and red snapdragons are popping up in what was supposed to be a bed of pink flowers. Explain to him the reason that this is happening.
A certain type of tomato seed germinates 90% of the time. A backyard farmer planted 25...
A certain type of tomato seed germinates 90% of the time. A backyard farmer planted 25 seeds. a) What is the probability that exactly 20 germinate? Carry answer to the nearest ten-thousandths. b) What is the probability that 20 or more germinate? Carry answer to the nearest ten-thousandths. c) What is the probability that 24 or fewer germinate? Carry answer to the nearest ten-thousandths. d) What is the expected number of seeds that germinate? Carry answer to the nearest tenths.
If you took a commercial hybrid variety (an F1 hybrid) and collected seed (F2) and planted...
If you took a commercial hybrid variety (an F1 hybrid) and collected seed (F2) and planted the F2 seeds the next season, how would the F2 progeny compare to the F1 hybrid variety?
Carol has annual income of $50,000 when healthy and there is a 10% chance that she...
Carol has annual income of $50,000 when healthy and there is a 10% chance that she will experience an accident. If she suffers an accident, it will cost her $20,000 in medical expenses. a. If Carol’s utility function is U=y^0.5, what is the most she would be willing to pay for an insurance policy that would cover all her medical costs when they occur. b. If Carol’s utility function is instead U=Y^0.1, what is the most she would be willing...
A biologist estimates that the chance of germination for a type of bean seed is 0.8. A student was given 10 seeds.
  A biologist estimates that the chance of germination for a type of bean seed is 0.8. A student was given 10 seeds. Let Xbe the number of seeds germinated from 10 seeds. a) Assuming that the germination of seeds is independent, explain why the distribution of Xis binomial. b) What are the values of nand p? c) What is the mean and standard deviation of the number of seeds that germinate? d) What is the probability that all seeds...
As a Christmas tree farmer, you want to know what seed type is the fastest growing....
As a Christmas tree farmer, you want to know what seed type is the fastest growing. You plant 14 seeds and wait three years. After three years of growth, the 14 seeds have an average height of 4.24ft and a standard deviation of 0.404ft. The tallest tree has is 4.79ft tall; (a) what is the probability that is random chance? Assume the data follows a normal distribution. (b) Should you use a t-score (t distribution) or a z-score (normal distribution)?
1. A firm's stock has 50% chance of a 13% rate of return and a  50% chance...
1. A firm's stock has 50% chance of a 13% rate of return and a  50% chance of a 20% rate of return. What is the standard deviation of return for this stock? Answer as a percent return  to the nearest hundredth of a percent as in xx.xx without entering a percent symbol.   2. A firm's stock has 50% chance of a 35% rate of return. a 30% chance of a 18% rate of return. and a 20% chance of a -24%...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT