A set of final examination grades in an introductory quantitative analysis course is normally distributed, with a mean of 73 and a standard deviation of 8.
a) What is the probability of getting a grade below 91 on this exam?
b) What is the probability that a student scored between 65 and 89?
c) The probability is
1) Two athletic teams play a series of games; the first team to win 4 games is declared the overall winner. Suppose that one of the teams is stronger than the other and wins each game with probability 0.6, independant of the outcomes of the other games. Find the probability that the stronger team wins the series in exactly i gam
1. The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45.
a. What is the probability that a randomly selected teacher earns more than $525 per week?
b. What is the probability a randomly selected teacher earns less than $435 per week?
2. The i
A university found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course.
a. Compute the probability that two or fewer will withdraw.
b. Compute the probability that exactly four will withdraw.
c. Compute the probability that
NCTM (2000). Principles and Standards for School Mathematics (Executive Summary accessed through http://www.nctm.org/ select Standards and Focal Points from menu under the NCTM logo on upper left of website and then select Exec Summary within the Math Standards section along middle of the page or go directly to http:
Only answer parts C) and D) of the attached question, please.
Each of 500 soldiers in an army company independently has a certain disease with probability 1/10[cubed]. This disease will show up in a blood test, and to facilitate matters blood samples from all 500 are pooled and tested.
One of the 500 people is Jones, who kno
Can anyone tell me why students often use an introductory phrase to introduce a quotation and then repeat the author's name in parentheses at the end? This doesn't make sense to me (and it's not MLA format), so I'm having trouble understanding why I see this in almost all papers. Do high school teachers ask for this? Are student
There is a lottery in which 2000 individuals enter, and of these a set of 120 names will be randomly selected. Assume that both you and your friend are entered in the lottery.
a. In how many ways can 120 names be randomly selected from the 2000 in the drawing?
b. In how many ways can the drawing be done in such a way that
30) An image is partitioned into 2 regions - one white and the other black. A reading taken from a randomly chosen point in the white section will give a reading that is normally distributed with Mean=4 and Variance =4, whereas one taken from a randomly chosen point in the black region will have a normally distributed reading wi