Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

The time needed to complete the final examination in particular college course is normally distributed with mean of 80 minutes and standard deviation of 10 times. Answer the following problems.

a. Find out the probability of completing the exam in one hour or less?

b. Find out the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes?

c. Suppose that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in allotted time?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916725

Have any Question? 


Related Questions in Statistics and Probability

Questionhypothesis testing for two populationscaption labor

Question: Hypothesis Testing for Two Populations Caption : Labor negotiations have reared their ugly head again! TNH Industry Human Resources department is concerned about the perception of the hours worked per week at t ...

Letnbspnbsprepresent a three-dimensional vector of random

Let   represent a three-dimensional vector of random variables that is uniformly distributed over a cubical region (a) Find the constant . (b) Find the marginal PDF for a subset of two of the three random variables. For ...

A study of nonfatal occupational injuries in the united

A study of nonfatal occupational injuries in the United States found that about 31% of all injuries in the service sector involved the back. The National Institute for Occupational Safety and Health (NIOSH) recommended c ...

Question 1 a survey of a snp single nucleotide polymorphism

Question 1. A survey of a SNP (Single Nucleotide Polymorphism) site segregating for nucleotides  C  and G  in a chimpanzee population found the following numbers of the different genotypes: C/C C/G G/G 11 42 64 What is t ...

Supposenbspnbspis a circular gaussian random variable whose

Suppose   is a circular Gaussian random variable whose PDF is described by Equation, Find the characteristic function associated with this complex Gaussian random variable,    Do you get the same (or different) results a ...

In the game of risk two players compete in a game of dice

In the game of RISK, two players compete in a game of dice rolling for conquest of the world. One player is on "offense" while the other is on "defense." For this problem, the player on offense is allowed to roll multipl ...

Complete the three sets of nine yellow boxes shown above

Complete the three sets of nine yellow boxes shown above, for each of the standard, LIFO and ABC costing methods.   Standard Cost     LIFO     ABC   Customer 1 Customer 2 Total Customer 1 Customer 2 Total Customer 1 Cust ...

Part 1nbspcreate a timeline in microsoft word that covers

Part 1:  Create a timeline in Microsoft Word that covers at least four major events that defined the 1960s. Part 2:  Write a brief, 300-500 word commentary that explains how each of these four events that you have mentio ...

Problem -an electronics store provides the following data

Problem - An electronics store provides the following data regarding the number of advertisements and the number of TV's sold during an eight week period. Determine the correlation coefficient between the number of adver ...

A random variable x has a gaussian pdf with mean 5 and unit

A random variable, X, has a Gaussian PDF with mean 5 and unit variance. We measure 10 independent samples of the random variable. (a) Determine the expected value of the sample mean. (b) Determine the variance of the sam ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate