Question

about 70% of all students have a laptop. randomly sample of 20 students, probability 1. exactly...

about 70% of all students have a laptop. randomly sample of 20 students,

probability

1. exactly 16 have a laptop?

2. at least 18 have a laptop?

3. fewer than 18 have laptop?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
about 72% of all students have a laptop. randomly sample of 40 students, probability 1. exactly...
about 72% of all students have a laptop. randomly sample of 40 students, probability 1. exactly 16 have a laptop? 2. at least 18 have a laptop? 3. fewer than 18 have laptop?
The probability of getting an A in chemistry is 46.50%. Assume randomly select 20 students enrolled...
The probability of getting an A in chemistry is 46.50%. Assume randomly select 20 students enrolled in chemistry a) what is the probability that at least 19 students receive an A in the course ? b) what is the probability that exactly 8 students do not receive an A in the course ? c) what is the probability that at most 18 students receive an A in the course
In a sample of 100 students taken randomly from QU, 70 of them have Twitter account,...
In a sample of 100 students taken randomly from QU, 70 of them have Twitter account, 80 have Facebook account, and 60 of them have both accounts. If a student is randomly selected: The probability that he/she has at least one account is The probability that he/she has no Twitter account is The probability that he/she has Twitter account only is The probability that he/she has neither Twitter nor Facebook account is The probability that he/she has either Twitter or...
Suppose that 20% of all college students smoke cigarettes. A sample of 12 is selected randomly....
Suppose that 20% of all college students smoke cigarettes. A sample of 12 is selected randomly. What is the probability that less than 8 students smoke? Round your answer to four decimal places.
In a large university, 20% of the students are male. If a random sample of twenty-two...
In a large university, 20% of the students are male. If a random sample of twenty-two students is selected. a. What is the probability that the sample contains exactly twelve male students? b. What is the probability that the sample will contain no male students? c. What is the probability that the sample will contain exactly twenty female students? d. What is the probability that the sample will contain more than nine male students? e. What is the probability that...
Suppose that the employment rate of UF-students is 70% and that 8 UF-students were randomly surveyed...
Suppose that the employment rate of UF-students is 70% and that 8 UF-students were randomly surveyed if they are employed. a) What is the probability that exactly 6 students are employed? b) What is the probability that at least 4 of them are employed? c) What is the probability that at most 6 of them are employed?
4. Suppose that the employment rate of USC-students is 70% and that 8 USC-students were randomly...
4. Suppose that the employment rate of USC-students is 70% and that 8 USC-students were randomly surveyed if they are employed. a) What is the probability that exactly 6 students are employed? b) What is the probability that at least 4 of them are employed? c) What is the probability that at most 6 of them are employed?
A company owns many laptops. Each laptop has an 18% probability of not working. You randomly...
A company owns many laptops. Each laptop has an 18% probability of not working. You randomly select 20 laptops for your salespeople. Round the answer to 4 decimal place. Show work clearly. (a) What is the likelihood that 5 will be broken? (b) What is the likelihood that they will all work? (c) What is the likelihood that that at least 5 are broken?
A recent survey shows that 3 in 4 of the college students own a computer or...
A recent survey shows that 3 in 4 of the college students own a computer or a laptop. If a random sample of 180 students is selected, find the probability that more than 116 but fewer than 126 have a computer or a laptop? (Show ALL the steps (1-6) to receive full 20pts). Then, conclude your answer. Step 1 - Step 2 - Step 3 - Step 4 - Step 5 - Step 6 - Conclusion -
2. The probability of getting a A in physics 0.74. Assume you randomly select 20 students...
2. The probability of getting a A in physics 0.74. Assume you randomly select 20 students enrolled In physics a. What is the probability that exactly 14.8 students receive an A in the course.(12pts) b. What is the probability that the fourth student you select is the first to receive an A in the course c. What is the probability that exactly 4 students receive an A in the course. (6pts)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT