The probability Kayla will score above 70% on a mathematics test is 0.60. Kayla will take five tests this semester. We want to find the probability she will score above 70% on exactly four out of the five tests. What is the value of x in this scenario? 2. The probability that the same Kayla will score above 80% on a mathematics test is 0.70. Kayla will take four tests this semester. We want to find the probability she will score above 80% on exactly three out of the four tests. What is the probability of Kayla scoring above 80% on exactly three out of the four tests?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.3: Conditional Probability; Independent Events; Bayes' Theorem
Problem 8YT: YOUR TURN 8 The probability that a student will pass a math exam is 0.8, if he or she attends the...
icon
Related questions
Question

Please no written by hand

1.

The probability Kayla will score above 70% on a mathematics test is 0.60. Kayla will take five tests this semester. We want to find the probability she will score above 70% on exactly four out of the five tests.

What is the value of x in this scenario?

2. The probability that the same Kayla will score above 80% on a mathematics test is 0.70. Kayla will take four tests this semester. We want to find the probability she will score above 80% on exactly three out of the four tests.

What is the probability of Kayla scoring above 80% on exactly three out of the four tests? 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL