In a researcher’s normal distribution, 35% of the area under the curve is to the right of the score of 70. At what percentile is 70? The middle score in the distribution is 60. What is the percentile of this score? What is the relative frequency of scores between 60 and 70? Q. 2In a normal distribution of scores, four participants obtained the following deviation scores: -1, +2, +3, and -0.15.Which participant obtained the highest raw score? Which participant obtained the lowest raw score? Rank-order the deviation scores in terms of their frequency, putting the score with the highest frequency first. If the median of distribution is considerably greater than the mean, what do you know about the shape of the distribution?

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Q. 2

In a normal distribution of scores, four participants obtained the following deviation scores: -1, +2, +3, and -0.15.

Which participant obtained the highest raw score?
Which participant obtained the lowest raw score?
Rank-order the deviation scores in terms of their frequency, putting the score with the highest frequency first.
If the median of distribution is considerably greater than the mean, what do you know about the shape of the distribution?

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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