Wednesday
April 16, 2014

Homework Help: stats

Posted by gio on Friday, February 18, 2011 at 10:09pm.

a test consists of 25 multiple choice questions. Each has 5 possible answers, which only one is correct. If a student guesses on each question, find the following:
a) prob that he will guess all of them right
b)prob that he will guess at most 12 right
c) prob that he will guess at least 1 right
d) mean and stndrd. deviation of the number of correct answers
e)estimate the prob of the number of correct answers that will fall within the limits -----> miu +or- 2(stand.dev)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

LBCC - A multiple choice quiz consists of 20 questions, each with 3 possible ...
Statistics - A multiple choice test consists of 60 questions. Each question has ...
stat probability - A multiple choice quiz consists of 20 questions, each with 3 ...
Finite Math - A biology quiz consists of 10 multiple -choice questions. 7 must ...
advanced statistics - suppose a student takes a multiple choice test with 10 ...
Binomial Distribution - A biology quiz consists of twelve multiple-choice ...
Statistics - There are 100 questions from a SAT test, and they are all multiple ...
statistics - A multiple choice test has 20 questions with each having 4 possible...
stats - a student randomly guesses at five multiple-choice questions, each ...
statistics - A student is taking a multiple choice test where each question have...

Search
Members