Mean and standard deviation of number of correct answers
Course:- Basic Statistics
Reference No.:- EM13149037

Assignment Help >> Basic Statistics

A test consist of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and standard deviation of the number of correct answers.

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Basic Statistics) Materials
Find the indicated probability using the geometric or Poisson distribution. A newspaper finds that the mean number of typographical errors per page is nine. Find the probabi
Assume you are in charge of a production line which allows for no more than 1% defectives in order to be in compliance. A random sample of 500 is tested and 4 defective ite
1.  Let P be a law on a separable normed vector space (S, · ), x ∈ S, and Px the translate of P by x , so that Px ( A) := P( A - x ) for all Borel sets A, where A - x :=
A study of 25 graduates of four-year colleges by the American Banker's Association revealed the mean amount owed by a student in student loans was $14,381.
A survey was carried out to find the salaries for technicians working in maintenance at Atlanta International Airport. The number of years spent in education was recorded as
A school newspaper reporter decides to randomly survey 12 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Find the probability that at m
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
The following data are survival times in days from a life-threatening condition: 15, 18, 18, 21, 21C, 25°, 26. Graph the estimated S(t) by the Kaplan-Meier method using a co