Probability-standard normal distribution

Assignment Help Basic Statistics

Reference no: EM13100321

Nationwide, GMAT scores in a particular year had an average of 528 with an SD of 112 and the scores roughly followed a normal curve. If a student scored 600 on the exam, approximately what percentage of test-takers scored below this student?

a. 64%

b. 70%

c. 74%

d. 78%

Reference no: EM13100321

Questions Cloud

Probability of obtaining given sample mean : The amount of pyroxidine (in grams) per multiple vitamin is normally distributed with a mean = 110 grams and a variance = 25 grams. A sample of 25 vitamins is to be selected.

Explain how community policing executed in neighborhood : In your own words, explain what community policing means to you and how is it executed in your neighborhood. Contact local police department

Probability of speeding cars : It has been reported that 3% of all cars on the highway are traveling at speeds in excess of 70 mph. If the speeds of four random automobiles are measured via radar, what is the probability that at least one car is going over 70 mph?

Critique the hr manager planned approach : Critique the HR manager's planned approach and give him advice on how to proceed. You can assume that a reasonable estimate for the proportion of new hires that are happy with the company is .8.

Probability-standard normal distribution : Nationwide, GMAT scores in a particular year had an average of 528 with an SD of 112 and the scores roughly followed a normal curve. If a student scored 600 on the exam, approximately what percentage of test-takers scored below this student?

Find the hypothesis that plants evolved from green algae : Which of these facts provides the best support for the hypothesis that plants evolved from green algae.

Estimation of the mean process : A chemical process converts lead to gold. However, the production varies due to the powers of the alchemist. It is known that the process is normally distributed, with a standard deviation of 2.5 g. How many samples must be taken to be 90% certain..

Normal probability-florida subdivision : Assume that, among residents of a large Florida subdivision, the population mean age is 65 years old, the population standard deviation is 2 years, and that the age variable is distributed normally.

How much glucose powder do you weigh in : How much of the stock solution are you adding to 500 mL of medium?

User Account

All Pages