Question

Example: It is known that 20% of all tablet computers will need the touch-screen repaired within...

Example: It is known that 20% of all tablet computers will need the touch-screen repaired within the first two years of use. Suppose we select15 tablet computers at random.

What is the probability that no more than 6 tablets will need repairs to the touch-screen within the first two years of use?

Example: What is the probability that exactly 5 tablets will need touch- screen repairs?

Example: What is the probability that at least 2 tablets will need touch- screen repairs?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Example - 1: Probability that no more than 6 tablets will need repairs to the touch-screen within the first two years of use

= P(X < 6)

= binomcdf(15, 0.20, 6) [Ti clculator command]

= 0.9819 [Rounded off to 4 decimal places]

Example - 2: Probability that exactly 5 tablets will need touch- screen repairs

= P(X = 5)

= binompdf(15, 0.20, 5) [Ti calculator command]

= 0.1032 [Rounded off to 4 decimal places]

Example - 3: Probability that at least 2 tablets will need touch- screen repairs

= P(X > 2)

= 1 - P(X < 1)

= 1 - binomcdf(15, 0.20, 1) [Ti calculator command]

= 0.8329 [Rounded off to 4 decimal places]

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
an electronics company finishes a production run of 5000 tablet computers, which includes 900 defective units....
an electronics company finishes a production run of 5000 tablet computers, which includes 900 defective units. To test this batch for defects, a random sample of 100 tablets is drawn (without replacement) and tested. Let X be the random variable that counts the number of defective units among the sample. a. find the expected (mean) value, variance, and standard deviation of X b. the probability distribution of X can be approximated with a binomial distribution. Why?   c. Use the binomial...
A consumer organization estimates that over a 1-year period 17% of cars will need to be...
A consumer organization estimates that over a 1-year period 17% of cars will need to be repaired only once, 7% will need repairs exactly twice, and 4% will require three or more repairs. If you own two cars, what is the probability that: a) neither will need repair? b) both will need repair? c) at least one car will need repair?
Two computer users were discussing tablet computers. A higher proportion of people ages 16 to 29...
Two computer users were discussing tablet computers. A higher proportion of people ages 16 to 29 use tablets than the proportion of people age 30 and older. The table below details the number of tablet owners for each age group. Test at the 1% level of significance. (For subscripts let 1 = 16-29 year old users, and 2 = 30 years old and older users.) 16–29 year olds 30 years old and older Own a Tablet 69 231 Sample Size...
It has been estimated that 23% of all university students switch majors within their first two...
It has been estimated that 23% of all university students switch majors within their first two years of starting classes. If a random sample of 470 third-year students is taken at a city university, what is an estimate of the probability that 20% or less had switched majors within their first two years? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability           
Suppose that 40% of all home buyers will do some remodeling to their home within the...
Suppose that 40% of all home buyers will do some remodeling to their home within the first five years of home ownership. Assuming this is true, use the binomial distribution to determine the probability that in a random sample of 20 homeowners, 4 or fewer will remodel their homes. Use the binomial table. 1.) The probability that 4 or fewer people in the same indicate that they will remodel their homes is ____. Thank you!!!!
It has been estimated that 21% of all university students switch majors within their first two...
It has been estimated that 21% of all university students switch majors within their first two years of starting classes. If a random sample of 400 third-year students is taken at a city university, what is an estimate of the probability that 17% or less had switched majors within their first two years? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability
It has been estimated that 26% of all university students switch majors within their first two...
It has been estimated that 26% of all university students switch majors within their first two years of starting classes. If a random sample of 560 third-year students is taken at a city university, what is an estimate of the probability that 23% or less had switched majors within their first two years? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability
It has been estimated that 17% of all university students switch majors within their first two...
It has been estimated that 17% of all university students switch majors within their first two years of starting classes. If a random sample of 430 third-year students is taken at a city university, what is an estimate of the probability that 15% or less had switched majors within their first two years? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability:
You may need to use the appropriate appendix table or technology to answer this question. A...
You may need to use the appropriate appendix table or technology to answer this question. A center for medical services reported that there were 295,000 appeals for hospitalization and other services. For this group, 40% of first-round appeals were successful. Suppose 10 first-round appeals have just been received by a Medicare appeals office. (Round your answers to four decimal places.) (a) Compute the probability that none of the appeals will be successful. (b) Compute the probability that exactly one of...
You may need to use the appropriate appendix table or technology to answer this question. A...
You may need to use the appropriate appendix table or technology to answer this question. A center for medical services reported that there were 295,000 appeals for hospitalization and other services. For this group, 55% of first-round appeals were successful. Suppose 10 first-round appeals have just been received by a Medicare appeals office. (Round your answers to four decimal places.) (a) Compute the probability that none of the appeals will be successful. (b) Compute the probability that exactly one of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT