what is a mean score

The stem and leaf plot shows the scores of eleven teams in a tournament. What is the mean of the scores of the eleven teams? => 68.18 or 65 or 63 or 64..

The math test scores of John are 93, 100, 82, 90, and 92. What score must he score on the next test to increase his mean to 92? => 90 or 92 or 95 or 93..

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 500 and standard deviation 100. What is the percentage of candidates who scored less than 400? => 15.87% or 17.85% or 18.57% or 15.78%..

To qualify in a competitive examination, candidates must score in the top 5% in the examination. The test has a mean of 200 and a standard deviation of 20. What is the lowest possible score to qualify? Assume the test scores are normally distributed..

Mean is the arithmetic average. To find mean of ungrouped data and it is obtained by adding the raw scores and dividing the sum by the number of items. There are three methods to find mean for a frequency distribution. (i) Direct method, (ii..

The scores on a certain standardized test are known to have a mean of 100 and standard deviation 25. A person will get a merit certificate if he scores above 125. What is the probability that a person taking this test receives a merit certificate? => 0.1587 o..

The mean score on a standardized test is 100 with a standard deviation of 8. A random sample of 48 scores was found to have a mean of 98. Find the standard error. => 1.15 or 0.8 or 8.0 or 1.0..

The points scored by Arthur in the last six basketball games are 6, 8, 8, 5, 8, and 19. Find his mean score. => 8 or 11 or 7 or 9..

James scored 23, 25, 19, 33, 27, 29 in succesive tests. Find the mean of his test scores. => 33 or 26 or 24 or 28..