Starting at 9 a.m., students arrive to class according to a Poisson process with

parameter λ = 2 (units are minutes). Class begins at 9:15 a.m. There are 30

students.

(a) What is the expectation and variance of the number of students in class by

9:15 a.m.?

(b) Find the probability there will be at least 10 students in class by 9:05 a.m.

(c) Find the probability that the last student who arrives is late.

(d) Suppose exactly six students are late. Find the probability that exactly 15

students arrived by 9:10 a.m.

(e) What is the expected time of arrival of the seventh student who gets

to class?

The need to build a new infrastructure to utilize digital technology is constantly increasing, but it is difficult to secure new infrastructure by increasing the number of system resources required indefinitely. If the cost of IT infrastructure is calculated by adding up (1 )fixed and (2) operational costs, what difference will each cost show before and after the introduction of the cloud?

Islam recognizes Jesus and Moses. Does this mean that Islam respects other religions? Why or why not?

Discuss the interdependence that exists between Database System Development Life Cycle stages.

Stock A and Stock B prices and dividends, along with the Market Index, are shown below. Stock prices are reported for December 31 of each year, and dividends reflect those paid during the year. The market data are adjusted to include dividends.

1. Use the data given to calculate annual returns for Stock A, Stock B, and the Market Index, and then calculate average annual returns for the two stocks and the index. (Hint: Remember, returns are calculated by subtracting the beginning price from the ending price to get the capital gain or loss, adding the dividend to the capital gain or loss, and then dividing the result by the beginning price. Assume that dividends are already included in the index. Also, you cannot calculate the rate of return for 2011 because you do not have 2010 data.)
2. What dividends do you expect for Stock A over the next three years if you expect the dividend to grow at the rate of 3% per year for the next three years? In other words, calculate D1, D2, and D3. Note that D0 = $1.50.
3. Assume that Stock A has a required return of 13%. You will use this required return rate to discount the dividends calculated earlier. If you plan to buy the stock, hold it for three years, and then sell it for $27.05, what is the most you should pay for it?

Q1(a) A class named “Employee” holds information like employee code, name,gender, year of joining. Write a program in C++ to create three objects of employee and enter some data into it through setters. Make getters and setters for all employee information. Then ask the user to enter current year. Display the names of those employees whose tenure is 2 or more than 2 years according to the given current year only using getters

(b)A class named “Employee” holds information like employee code, name,gender, year of joining. Write a program to create five hundred objects (Array of employee objects )of employee and enter some data into it through setters. Make getters and setters for all employee information. Then ask the user to enter current year. Display the names of those employees whose tenure is 5 or more than 5 years according to the given current year only using getters.
Note: employee code is automatically assigned to newly created object by calling default constructor

(b) Define a class StudentReport with the following specification:
Private members :
adno 4 digit admission number
name 20 characters
marks an array of 5 floating point values
average average marks obtained
GETAVG() a function to compute the average obtained in five subject
Public members:
READINFO() function to accept values for adno, name, marks. Invoke the function   
GETAVG()

DISPLAYINFO() function to display all data members of StudentReport on the screen.
You should give function definitions outside the class using scope resolution operator.

Use C++ to answer

Describe the experimental method, state its advantages and disadvantages, and distinguish between independent and dependent variables.

Key Terms

experimental method

causal hypothesis

independent variable

dependent variable

experimental group

control group

random assignment

Exercises

1. What is the primary advantage of the experimental method?

2. Read the scenario and answer the questions that follow it.

In a laboratory study of sleep deprivation, researchers employed a variety of techniques to keep volunteers awake for variable amounts of time.   One group of participants was kept awake for 24 hours, and the other was kept awake for 48 hours. During periods of forced wakefulness, participants were required to engage verbal learning tasks such as memorizing the definitions of obscure English words. At the conclusion of the period of forced wakefulness, participants were allowed to sleep for as long as they wanted to. When participants awakened, researchers tested them on the learning tasks they completed during the periods of forced wakefulness. The researchers discovered that participants who were deprived of sleep for 48 hours recalled less than those who had been forced to remain awake for 24 hours.

1a. What is the independent variable?_____________________________________________

1b. What is the dependent variable?_______________________________________________

1c. What is the control group?____________________________________________________

1d. What is/are the experimental group(s)?__________________________________________

3. Why is random assignment critical to the experimental method?

PERCEPTION AND SENSATION

-Debate why many focus on perception as a tool for action and survival instead of focusing only on perception as a tool for developing mental representations.

-Discuss the ways in which ability and expectations can affect perception.

-Discuss the major functions of motion perception and the ways in which we can perceive motion.

-Describe real and apparent motion, what the aperture problem is, and how the visual system “solves” this problem.

-Detail how lesioning, transcranial magnetic stimulation and microstimulation have been used to study how neurons signal motion.

-State the major principles of the corollary discharge theory of motion perception, and summarize the behavioral and physiological support for the theory.

-Discuss behavioral and physiological research on implied motion, and relate this to the concept of representational momentum.

-Discuss developmental research on motion preference in newborn babies.

the process used to attack networks and the devices on networks. APA FORMAT

[The following information applies to the questions displayed below.]

The following data pertain to Lawn Master Corporation’s top-of-the-line lawn mower.

To achieve a target price of $541 per lawn mower, the markup percentage is 12.7 percent on total unit cost.

Required:

1. What is the fixed selling and administrative cost allocated to each unit of Lawn Master’s top-of-the-line mower? (Do not round your intermediate computations. Round your final answer to the nearest dollar amount.)
2. For each of the following cost bases, develop a cost-plus pricing formula that will result in a target price of $541 per mower: (Round your percentage answers to 2 decimal places (i.e., .1234 should be entered as 12.34).)

Suppose you receive an order for 150 pieces in period 4 that has to be delivered in period 5 and when you check your MPS you discover that in that period you only have 60 units available to promise and your next batch (300 units) it's scheduled to arrive in Period 6 and preparation time is 3 weeks. What actions can you take to resolve this situation? What are the limitations of the requirements that must be considered? What should be the criteria that must be considered to evaluate and select the best alternative?

PLEASE BE SUPER SPECIFIC IN YOUR ANSWER. FOR SOME CONTEXT THIS IS A QUESTION FOR A PRODUCTION AND INVENTORY DESIGN AND ANALYSIS CLASS.

I will make sure to rate your answer. THANK YOU.

This is an analytical problem. Whats expected its to provide alternatives to the dilema presented in the production system and analyze the possible consequences of them.

Implement synchronous send and receive of one word messages (also known as Ada-style rendezvous), using condition variables (don't use semaphores!). Implement the Communicator class with operations, void speak(int word) and int listen().

speak() atomically waits until listen() is called on the same Communicator object, and then transfers the word over to listen(). Once the transfer is made, both can return. Similarly, listen() waits until speak() is called, at which point the transfer is made, and both can return (listen() returns the word). Your solution should work even if there are multiple speakers and listeners for the same Communicator (note: this is equivalent to a zero-length bounded buffer; since the buffer has no room, the producer and consumer must interact directly, requiring that they wait for one another). Each communicator should only use exactly one lock. If you're using more than one lock, you're making things too complicated.