Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are n=7 trials, each with probability of success (correct) given by p=0.2. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. P(X< 4) = (Round to four decimal places as needed.)

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.3: Binomial Probability
Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...
icon
Related questions
Question
I need help solving this statistics problem.
m
abil
Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there aren=7 trials, each with probability of success (correct)
rey given byp%30.2. Find the indicated probability for the number of correct answers.
dult Find the probability that the number x of correct answers is fewer than 4.
cted
P(X<4) =
exac (Round to four decimal places as needed.)
ire a
ume
made
estion
oices 1
at there
ith prol
correct)
ne prob
Easy to
answers.
Clear all
Check answer
Help me solve this
View an example
Get more help -
Add to
A pharmaceutical company
n=41
1O
prese
SAMSUNG
Transcribed Image Text:m abil Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there aren=7 trials, each with probability of success (correct) rey given byp%30.2. Find the indicated probability for the number of correct answers. dult Find the probability that the number x of correct answers is fewer than 4. cted P(X<4) = exac (Round to four decimal places as needed.) ire a ume made estion oices 1 at there ith prol correct) ne prob Easy to answers. Clear all Check answer Help me solve this View an example Get more help - Add to A pharmaceutical company n=41 1O prese SAMSUNG
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning