+61-413 786 465
info@mywordsolution.com
Home >> Statistics and Probability
a. What is the union of two events?
b. What is the probability of "one event or another" if you know,
(1) Their probabilities and the probability of "one event and the other"?
(2) That they are mutually exclusive?
Statistics and Probability, Statistics
Military often provides a form of qualification test for people to enter special career fields. Suppose that a large number of people have taken a test for a certain career field. Suppose that the mean of all people taki ...
You work for a large company with tens of thousands of retail outlets throughout the world. The average sales at each retail outlet is $2,400,000 per year, with a standard deviation of $600,000. You want to put in place ...
A carnival game involves a spinner that is designed so that in 20 percent of spins the player will win a prize. A random sample of 100 spins will be observed and the random variable X = number of times in the sample that ...
Question: A random variable X is known to be distributed either N(1,3) or N(2,3). The mill hypothesis is that the mean is equal to 1. The alternative hypothesis is that the mean is 2. a. With a sample of 10 draws from th ...
Is there a way to approach this problem in Excel: The Marriott Hotel marketing team wants to estimate ρ, the proportion of the hotel guests who were return visitors in the past three years. They select a simple random sa ...
Describe the scales of measurement of data that should be summarized by a measure of location such as a sample mean and a sample median? When is the sample median a better measure of location than the sample mean? Why do ...
Question: Suppose X is a normally distributed random variable with mean µ = 200 and standard deviation σ = 20 a. Sketch the probability density function of X¯. On the same graph, sketch the probability density function o ...
Medical researchers studying the effects of a low carb diet versus a normal diet randomly assigned obese patients to one of the two diets. The patients were followed up with after several months and the amount of weight ...
The length of time needed to complete certain test is normally distributed with mean 74 minutes and standard deviation 17 minutes. Find the probability that it will take more than 70 minutes to complete the test. 0.7035 ...
Ages of CEOs of companies throughout the United States, and answer the questions that follow. Event A : CEO is under 40 Event B : CEO is at least 30 Event C : CEO is in his or her 50s Event D : CEO is under 60 1. Even ...
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.
Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As