Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. suppose that a category of world class runners are

Suppose that a category of world class runners are known to run a marathon (26 miles)...

90.2K

Verified Solution

Question

Basic Math

Suppose that a category of world class runners are known to runa marathon (26 miles) in an average of 141 minutes with a standarddeviation of 12 minutes. Consider 49 of the races. Let X = theaverage of the 49 races. Part (a) Give the distribution of X.(Round your standard deviation to two decimal places.) X ~ , Part(b) Find the probability that the runner will average between 138and 142 minutes in these 49 marathons. (Round your answer to fourdecimal places.) Part (c) Find the 80th percentile for the averageof these 49 marathons. (Round your answer to two decimal places.)min Part (d) Find the median of the average running times. min

Answer & Explanation Solved by verified expert
4.0 Ratings (576 Votes)
141sd 12n 49a X will be a normal    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: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Statistics
1.2K views

How is statistical software useful?

Physics
1.2K views

4) Earth exerts a gravitational force of more than 1,000,000 N on an international space station what...

Accounting
1.2K views

Verde Company reported operating costs of $40,000,000 as of December 31, 20x5, with the following environmental...

Geometry
1.2K views

esson Posttest Question 5 Find the scale factor from the following similar figures 24 cm...

Basic Math
1.2K views

Consider the following compound inequality 18 6 Answer y 3 3 23 6 Step 1...

Calculus
1.2K views

The angle 120 corresponds to 0 of a complete rotation Type an integer or a...

Accounting
1.2K views

Use real or hypothetical examples as a way to illustrate your explanation: - Currency Options:...

Accounting
1.2K views

Problem 7-4 (Algo) Uncollectible accounts; financial statement effects [LO7-5, 7-6] Raintree Cosmetic Company...

Accounting
1.2K views

The beginning balance in Swan, Inc.'s OAA is $6,700, and the following transactions...

Accounting
1.2K views

A firm had retained earnings of $100,000 in 2012 and $125,000 in 2013. The increase...

Accounting
1.2K views

Rodd Co. reports a taxable and pretax financial loss of $800,000 for 2015. Rodd's taxable...

Accounting
1.2K views

What is the present value of $7,500 to be received at the beginning of each...