Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. the time needed to complete a final examination in

The time needed to complete a final examination in a particular college course is normally distributed...

90.2K

Verified Solution

Question

Basic Math

The time needed to complete a final examination in a particularcollege course is normally distributed with a mean of 100 minutesand a standard deviation of 20 minutes. Answer the followingquestions.

(a)What is the probability of completing the exam in one hour orless?

(b) What is the probability that a student will complete theexam in more than 60 minutes but less than 75 minutes?

(c) Assume that the class has 90 students and that theexamination period is 130 minutes in length. How many students doyou expect will be unable to complete the exam in the allottedtime

Answer & Explanation Solved by verified expert
4.4 Ratings (575 Votes)
Solution Given that mean 100    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Calculate the energy difference between the photopeak and the Compton edge in Co 60 spectra

Physics
Q

explain how does racial discrimination occurs and affect the workplace by the employee them salves and...

Psychology
Q

The correct order of steps for Hemostasis is:Injury, spasm, platelet plug, coagulationInjury, platelet plug, vasoconstriction,...

Biology
Q

25m 46 Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to...

Physics
Q

1 Plot the following points in a single 3D space with guiding lines 1 0...

Geometry
Q

Samantha invests $555 in an account that earns 14% interest compounded continuously. When will the...

Basic Math
Q

The graph of a function f is shown Draw the graph of y f 1...

Algebra
Q

I just need 10,11 ...

Accounting
Q

On January 1, 20X1. Popular Creek Corporation organized SunTime Company as a subsidiary in Switzerland...

Accounting
Q

2. Hess Company's inventory records September: show the following data for the month of Inventory,...

Accounting
Q

You are considering whether you should invest $12 million at time 0 for the following...

Finance
Q

Which of the following statements is true? The payback investment rule is based on the...

Finance