Your answer

asked 2021-05-30

There are three women and four men in a group of seven people. If three people are selected from the total of seven, find the following: i)What are the total possible outcomes for this selection? ii)How many ways can two women and one man be selected? iii)What is the probability of selecting two women and one man?

asked 2021-05-05

If John, Trey, and Miles want to know how’ |
many two-letter secret codes there are that don't
have a repeated letter. For example, they want to
: count BA and AB, but they don't want to count“ doubles such as ZZ or XX. Jobn says there are
26 + 25 because you don’t want to use the same
letter twice; that’s why the second number is 25.

‘Trey says he thinks it should be times, not plus: 26-25, Miles says the number is 26-26 ~ 26 because you need to take away the double letters. Discuss the boys’ ideas, Which answers are correct, which are not, and why? Explain your answers clearly and thoroughly, drawing ‘on this section’s definition of multiptication.. -

‘Trey says he thinks it should be times, not plus: 26-25, Miles says the number is 26-26 ~ 26 because you need to take away the double letters. Discuss the boys’ ideas, Which answers are correct, which are not, and why? Explain your answers clearly and thoroughly, drawing ‘on this section’s definition of multiptication.. -

asked 2021-05-12

4.7 A multiprocessor with eight processors has 20attached tape drives. There is a large number of jobs submitted tothe system that each require a maximum of four tape drives tocomplete execution. Assume that each job starts running with onlythree tape drives for a long period before requiring the fourthtape drive for a short period toward the end of its operation. Alsoassume an endless supply of such jobs.

a) Assume the scheduler in the OS will not start a job unlessthere are four tape drives available. When a job is started, fourdrives are assigned immediately and are not released until the jobfinishes. What is the maximum number of jobs that can be inprogress at once? What is the maximum and minimum number of tapedrives that may be left idle as a result of this policy?

b) Suggest an alternative policy to improve tape driveutilization and at the same time avoid system deadlock. What is themaximum number of jobs that can be in progress at once? What arethe bounds on the number of idling tape drives?

a) Assume the scheduler in the OS will not start a job unlessthere are four tape drives available. When a job is started, fourdrives are assigned immediately and are not released until the jobfinishes. What is the maximum number of jobs that can be inprogress at once? What is the maximum and minimum number of tapedrives that may be left idle as a result of this policy?

b) Suggest an alternative policy to improve tape driveutilization and at the same time avoid system deadlock. What is themaximum number of jobs that can be in progress at once? What arethe bounds on the number of idling tape drives?

asked 2021-05-23

Mr Smith had Four daughters, each daughter had a brother. How many children does Mr Smith have'

the answer is nor five, four, zero, or eight. i tried all of them they are worng. what would the answer be and consider the "had" please.

the answer is nor five, four, zero, or eight. i tried all of them they are worng. what would the answer be and consider the "had" please.

asked 2021-05-22

Sheila is in Ms. Cai's class . She noticed that the graph of the perimeter for the "dented square" in problem 3-61 was a line . "I wonder what the graph of its area looks like ," she said to her teammates .

a. Write an equation for the area of the "dented square" if xx represents the length of the large square and yy represents the area of the square.

b. On graph paper , graph the rule you found for the area in part (a). Why does a 1st−quadrant graph make sense for this situation? Are there other values of xx that cannot work in this situation? Be sure to include an indication of this on your graph, as necessary.

c. Explain to Sheila what the graph of the area looks like.

d. Use the graph to approximate xx when the area of the shape is 20 square units.

a. Write an equation for the area of the "dented square" if xx represents the length of the large square and yy represents the area of the square.

b. On graph paper , graph the rule you found for the area in part (a). Why does a 1st−quadrant graph make sense for this situation? Are there other values of xx that cannot work in this situation? Be sure to include an indication of this on your graph, as necessary.

c. Explain to Sheila what the graph of the area looks like.

d. Use the graph to approximate xx when the area of the shape is 20 square units.

asked 2021-08-03

Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent waiting at a restaurant, you sample 110 people and you get a \(\displaystyle{95}\%\) confidence interval of \(\displaystyle{\left({4},\ {6}\right)}\) in minutes.

1. \(\displaystyle{95}\%\) of people wait between 4 and 6 minutes at the restaurant.

2. 95 of the people in your sample waited between 4 and 6 minutes.

3. You are \(\displaystyle{95}\%\) sure your sample resulted in a confidence interval the contains the true mean.

1. \(\displaystyle{95}\%\) of people wait between 4 and 6 minutes at the restaurant.

2. 95 of the people in your sample waited between 4 and 6 minutes.

3. You are \(\displaystyle{95}\%\) sure your sample resulted in a confidence interval the contains the true mean.

asked 2021-08-04

On a certain day, a large number of fuses were manufactured, each rated at 15 A. A sample of 75 fuses is drawn from the day’s production, and 17 of them were found to have burnout amperages greater than 15 A.

a) Find a \(\displaystyle{95}\%\) confidence interval for the proportion of fuses manufactured that day whose burnout amperage is greater than 15 A.

b) Find a \(\displaystyle{98}\%\) confidence interval for the proportion of fuses manufactured that day whose burnout amperage is greater than 15 A.

c) Find the sample size needed for a \(\displaystyle{95}\%\) confidence interval to specify the proportion to within \(\displaystyle\pm{0.05}.\)

a) Find a \(\displaystyle{95}\%\) confidence interval for the proportion of fuses manufactured that day whose burnout amperage is greater than 15 A.

b) Find a \(\displaystyle{98}\%\) confidence interval for the proportion of fuses manufactured that day whose burnout amperage is greater than 15 A.

c) Find the sample size needed for a \(\displaystyle{95}\%\) confidence interval to specify the proportion to within \(\displaystyle\pm{0.05}.\)