+1-415-315-9853

info@mywordsolution.com

## Statistics

1) In the continuous distribution, probability density is provided by the function. Determine k, mean, variance and the distribution.

2)a) The number of monthly breakdowns of the computer is a random variable having the Poisson distribution with mean equal to 1.8. Determine the probability that this computer will function for the month

a) Without a breakdown

b) With at least one breakdown.

(b) If probability that the applicant for the driver’s license will pass the road test on any given trail is 0.8, find the probability that he will finally pass the test:

a) On the fourth trail and

b) less than four trails.

3) In the normal distribution, 7% of the items are under 35 and 89% of the items are under 63. Specify the mean and standard deviation of distribution.

4) Determine the correlation coefficient between X and Y using the following data.

X: 65 67 66 71 67 70 68 69

Y: 67 68 68 70 64 67 72 70

5) Fit the parabola by method of least squares to the following data also determine y at x=6.

X: 1 2 3 4 5

Y: 5 12 26 60 97

6) Customers reach at one man barber’s shop, as per the Poisson process with the mean inter arrival time of 12 min. Customers spend an average of 10 min in the barber’s chair.

a) What is the expected number of customers in barber shop and in queue?

b) Determine the percentage of customers who have to wait prior to get in to the barber’s chair?

c) describe the probability that waiting time in the system is greater than 30 min?

18. There are 3 typists in an office. Every typist can type an average of the 6 letters per hour. If letters reach for being typed at rate of 15 letters per hour.

a) Find the fraction of time all the typists will be busy?

b) describe the average number of letters waiting to be typed?

c) Determine the average time a letter has to spend for waiting and being for typed?

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M912575

Have any Question?

## Related Questions in Statistics and Probability

### At a university the average cost of books per student has

At a university, the average cost of books per student has been \$400 per student per semester. The Dean of Students believes that the costs are increasing and that the average is now greater than \$400. He surveys a sampl ...

### Using size as the independent variable and cost as the

Using "size" as the independent variable and "cost" as the dependent variable, draw a scatter plot. b. Does it appear from inspection that there is a relationship between the variables? Why or why not? c. Calculate the l ...

### Within a forensic investigation a sample was independently

Within a forensic investigation, a sample was independently analyzed for lead content by two different laboratories, Lab 1 and Lab 2. The analysis that was performed on this sample by Lab 1 yielded a coefficient of varia ...

### Explain how you would conduct the study you designed in

Explain how you would conduct the study you designed in Question as a matched-subjects design. Question:- Design a randomized groups experiment to test the hypothesis that children who watch an hour-long violent televisi ...

### My variables are 1 sat scores between 600- 2400 2 gender 3

My variables are: 1. SAT scores between 600- 2400, 2. Gender, 3. Type of college attended, 1 for public university, 2 for private university, 4. Type of degree held: 1 for bachelors, 2 for masters, 3 for PHD or doctorate ...

### List an example of each of the followinga two quantitative

List an example of each of the following: a. Two quantitative variables that are likely to have a positive linear relationship. b. Two quantitative variables that are likely to have a negative linear relationship. c. Two ...

### A commuter airline flies airplanes that seat 14 passengers

A commuter airline flies airplanes that seat 14 passengers. From experience, they have learned that, on average, 85% of the passengers holding reservations for a particular flight actually show up for the flight. If they ...

### What main effects and interaction could you test with the

What main effects and interaction could you test with the design you developed for Question 1? Are you predicting that you will obtain an interaction? Question 1 Build on the design you created in Question 2 to test the ...

### In a recent survey of high school seniors a random sample

In a recent survey of high school seniors, a random sample of 1000 females showed that 650 were planning on pursuing a college degree, while a random sample of 1000 females showed that 600 were planning on pursuing a col ...

### What was the hellenistic age and how did it come to be what

What was the Hellenistic age and how did it come to be? What are some special characteristics of Hellenistic cities, art, culture, thought, and achievements? What were some of the major contributions of the Hellenistic a ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen