normal distribution with mean

The scores made by candidates in a certain test are normally distributed with mean 500 and standard deviation 100. What percentage of candidates received scores greater than 700? => 2.28% or 2.82% or 47.72% or 47.27%..

The scores made by candidates in a certain test are normally distributed with mean of 500 and standard deviation of 100. What percentage of candidates received scores between 400 and 700? => 88.15% or 81.85% or 88.51% or 85.81%..

An organization conducted a test for a group of students, whose scores are normally distributed with mean 70 and standard deviation 3. Find the probability that the score of a particular student is greater than 67. => 0.8413 or 0.1587 or 0.3413 or 0.5000..

Five thousand candidates appeared for an examination, which carried a maximum of 100 points. These points were found to be normally distributed with mean 39.5 and standard deviation 12.5. Determine approximately the number of candidates who secured more than 60 points...

Find the highest control limit for a normally distributed curve with a mean of 20 and a standard deviation of 3. => 23 or 29 or 11 or 26..

Let X denote the number of scores on a test. If X is normally distributed with a mean of 90 and a standard deviation of 10, find the probability that X is not less than 70. => 0.4772 or 0.7472 or 0.7972 or 0.9772..

Assume that the weights of 3,000 students at a university are normally distributed with mean 150 pounds and a standard deviation of 7 pounds. If 100 samples of 30 students each are obtained, then what would be the expected mean and standard deviation of the r..

Assume that the weights of 3,000 students at a university are normally distributed with mean 150 pounds and a standard deviation of 2.72 pounds. How many samples would you expect to find the mean between 147 and 155 pounds? => 83 or 82 or 84 or 81..

Assume that the weights of 3,000 students at a university are normally distributed with mean 150 pounds and a standard deviation of 7 pounds. If 100 samples of 30 students each are obtained, then what would be the expected mean and standard deviation? => 150 ..

Suppose the number of games in which major league baseball players play during their careers is normally distributed with mean equal to 1,500 and standard deviation equal to 350 games. What percentage play in more than 2,000 games? => 7.64% or 42.36% or 0.77% or 92.36%..