Mean and variance of x
A random variable X has a distribution with pdf p(x) = ((x^2)/16)*exp(-x/2) when x>0 and p(x) = 0 whenever x<0. What is the mean and variance of X?
Expected delivery within 24 Hours
A university found that the 30% of its students withdraw without completing the introductory statistics course. Suppose that 20 students registered for the course.
Provided: y^2 = -12x a. Find direction where the parabola opens? b. Write the value for p. c. Write equation for directrix. d. Write focal point(focus). e. Write endpoints of focal chord.
In a large class, the midterm had the average of 50 points with SD of 22. The final scores averaged out to 60 with SD of 20. The correlation between midterm as well as final scores was 0.60. The scatter diagram was football-shaped. Of the students
Determine the formula for exponential function V=h(t) which provides value of the item initially worth $5000 which loses half its value every 5 years.
Suppose exponential growth, determine the formula for number of cells p(t) in colony after t hours. How long will it take for colony to triple in size?
Estimate the value of k that makes f(x) a probability density function. (Hint:to find k, compare f(x) with the pdf of a normal distribution.)
Find P(Y > 5) using Poisson approximation. Find P(Y > 5) using Normal approximation.
You are given 10 multiple choice questions with 5 choices each, of which only one is correct. If you try and guess the correct answer for each question. Determine the probability of answering at least one question correctly?
1933469
Questions Asked
3,689
Active Tutors
1449043
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Which of the following is the Army Health System principle aimed at ensuring care is available at the right time and place to keep morbidity and mortality
Which of the following are sustainment functions that man the force, maintain Soldier and Family readiness, promote the moral and ethical values of the nation
Question: Which of the following represents a principle of harm reduction? Need Assignment Help?
A badly injured Soldier arrives at a medical facility but is now non- transportable because of their injuries, so they receive resuscitative surgical care
Question: What is a key component of the SBIRT approach in addressing substance misuse?
Give an example of a case study report of a fictional character and illustrate the impact that opioid misuse has had upon them at the individual
Client talked about several updates since our last session. Client mentioned that their eating and sleeping have been good, and that their medications