One mole of an ideal gas in an initial state P = 10atm, V = 5L, is taken reversibly in aclockwise direction around a circular path given by (V − 10)^2 + (P − 10)^2 = 25. Computethe amount of work done by the gas and the change in internal energy.
In: Chemistry
In: Physics
Let the sample size be n = 700. The random quantity V = (Ybar +6−θ) is
a pivotal quantity for θ. The distribution of V is approximately normal with
mean 6.5 and variance 0.05 . Use this information to construct a 90% confidence 1200
interval for θ with equal tail probabilities.
In: Statistics and Probability
150 to 200 words
This week, our discussion will focus on the concept of stare decisis and the landmark decision of Roe v. Wade.
1 -If your last name starts with the letters A - K, draft arguments that Roe v. Wade is settled law under the concept of stare decisis.
In: Accounting
1.Evaluate the integral C where C is x=t^3 and y=t, 0 ≤ t ≤
1
2.Find the area of the surface with vectorial equation
r(u,v)=<u,u sinv, cu >, 0 ≤ u ≤ h, 0≤ v ≤ 2pi
In: Advanced Math
Alameen is a railway system and wants to install Ticket Vending Machines (TVMs) on the platforms of all rail stations in Peshawar. The TVMs will allow the passenger to buy a ticket/pass using cash, coins, debit cards, or credit cards. The interface of the TVMs should be very easy for the passengers to buy their tickets.
This system should be designed in such a way that the passenger first selects the ticket type, transaction mode, and then get a pass/ticket. Passengers can be adult, senior/disabled citizens, child (5-14 years old), high school, or college students. Ticket type can be either a two-hour pass, midday pass, or AM pass (Monday through Friday from 09:30 am to 02:30 pm), a PM pass (noon through the end of service on the date purchased), a day pass, a 7-day pass, or a 31-day pass. There will be no ticket fare for senior or disabled citizens. The only thing they have to show during traveling is the valid ID and ticket. The ticket fare for a child (5-14 years old), high school or college students will be reduced, and they will have to show valid Id along with ticket (reduced fare) to the ticket checking authority.
The system should restrict the unauthorized users from using the system. The system should be fast enough that it should accept the input from the user in less than 1 second. The system should be fast enough to print the ticket to the user within 3 to 5 secs when user inserts all the required information. The system should be available 24 hours a day and 7 days a week. The system will also be used by the operator to know the cash and coins inside the machine and withdraw or deposit cash when required. The system is designed in such a way to allow admin to generate reports. The reports include how many tickets are sold, the number of transactions, cash or coins collected, change fares, cash, or coins dispensed.
To understand the operation of Ticket Vending Machines (TVMs) and how to buy a ticket through TVMs, please watch the following short tutorials (one is 4:52 and other is 2:35 min: secs) as listed below:
Read the above-mentioned scenario and answer the following questions which are as follows:
In: Computer Science
From a population of 10,000 students, an average height of 174.5 cm and a standard deviation of 6.9 cm. A sample of 50 is drawn students. What is the expected number of students in the sample whose height varies between 173 cm and 175 cm?
In: Statistics and Probability
The heights of 500 female students, half of whom are college students while the other half are second-grade students.
Describing Distributions. For each distribution described in Exercises, answer the following questions:
a. How many modes would you expect for the distribution?
b. Would you expect the distribution to be symmetric, left skewed, or right-skewed?
In: Statistics and Probability
Activity 4
Answer the following questions. You are allowed to use online calculators such as Stat Trek Binomial, Poisson, ect calculators, just make sure to note the values you entered in your answer. A similar question has previously been answered but it's incorrect which is why I am reposting my own version of the question.
I would prefer if the calculator was used where applicable but show any work to solve the problem as well.
Suppose you are designing a computer server for students to log into to work remotely. You know that on average you will see ten students logging into the server per hour.
a) What is the chance that more than 15 students will log into the server in a particular hour?
b) What is the chance of seeing exactly 10 students log into the server in a particular hour?
c) What is the chance of fewer than 15 students logging into the server in a two-hour period?
d) In designing the server, you must decide the
maximum number of students that it can accommodate at one time. The
more students you allow it to accommodate, the more expensive it
will be. But if more students attempt to log in during a single
hour than it can accommodate, it will crash. How many students
should you design it to accommodate if you want there to be at most
a 1% chance that it will crash during any particular
hour?
In: Statistics and Probability
Only 30% of the students in a certain liberal arts college are males.
Question 10 of 11
If two students from this college are selected at random, what is the probability that they are both males?
0
0.25
0.51
0.60
0.09
Again, only 30% of the students in a certain liberal arts college are males.
If two students from this college are selected at random, what is the probability that they are of the same gender?
0.21
0.42
0.49
0.58
0.09
In: Statistics and Probability