Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. scores on a test are approximately normally distri

Scores on a test are approximately normally distributed with a mean of 70 and a...

90.2K

Verified Solution

Question

Basic Math

image

Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students, B's to the next 20%, and C's to the next 40%. What is the cutoff for an C grade? (Round your answer to the nearest whole number).

Answer & Explanation Solved by verified expert
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: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Mechanical Engineering
1.2K views

A tank having vertical sides and a bottom area of 100 ft2 is used to store...

Basic Math
1.2K views

Discuss the following in 175 words: How normal distributions play a significant role in managerial decision-making.

Finance
1.2K views

Superman Enterprises has just completed an initial public offering. The firm sold 800,000 new shares (the...

Biology
1.2K views

An example of a generally inhibitory neurotransmitter is GABA O glutamate O acetylcholine

Basic Math
1.2K views

Use the value of the ratio to fill in the following two multiplicative comparison statement...

Basic Math
1.2K views

Select the correct answer The value of m varies inversely as the square of n...

Accounting
1.2K views

On Jan 1, 2020 Lala Cor. had 100,000 shares of common stock outstanding. During...

Accounting
1.2K views

Miller Company

Accounting
1.2K views

Given the following statements that occured in the month of November, create an income statement:...

Accounting
1.2K views

1. Assume the following: Estimated fixed manufacturing overhead for the coming period of $207,00....

Accounting
1.2K views

Supplies Expense Trucks Cash Gas and Oil Expense 3,000 7,500,000 153,500 150,000 Accounts Payable...

Finance
1.2K views

Determine the present value of an annuity due of $5,000 per year for 8 years...