mean t score

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 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 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 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..

The math test scores of John are 87, 94, 76, 84 and 86. What score must he score on the next test to increase his mean to 86? => 84 or 86 or 87 or 89..

The period of wave motion is the time in which a particle of the medium completes one oscillation i.e., a to and fro motion about its mean positio..

Find the mean test score of a student if his scores in 6 subjects are as follows. 90, 96, 73, 94, 75 and 94. => 87 or 88 or 85 or 86..

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%..

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 which differ from 500 by more than 150 points? => 43.23% or 13.36% or 43.32% or 6.68%..