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- Complete the following table From the frequency distribution, find the mean. Interval Midpoint x Frequency F Product xf 41.5-48.5 11 48.5-55.5 15 55.5-62.5 19 62.5-69.5 25 69.5-76.5 3 76.5-83.5 2Q3/ A//Determine the mean by using short- 60 61 62 63 64 65 60 cut method Frequency 8 12 9 7 14 6. 8 B//Determine the Geometric Mean for the 20 35 60 75 90 15 10 |Frequency 4 3 3 2 6. data. 143. Find the 7th decile and 60th percentile from the following data : 50-60 60-70 70-80 80-90 90-100 Wages (Rs.) 30-40 40-50 No. of workers 11 21 43 32 9. 1 3
- THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE RANGE (USE THE EXACT ANSWER) SCORE INTERVAL 91-100 5 95.5 65 81-90 5 85.5 60 13 75.5 55 61-70 12 65.5 42 51-60 71-80 41 - 50 31-40 f xTHE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE INTERQUARTILE RANGE (USE 4 DECIMAL PLACES) SCORE INTERVAL 91-100 5 95.5 65 81-90 71 - 80 61-70 51 - 60 41 - 50 31-40 f XWhat is the mean squar error for the followin data set x y -2 4 -1 2 0 2 1 1 2 1The Truly Amazing Dudes are a group of comic acrobats. The weights (in pounds) of the ten acrobats are as follows. 152 196 144 139 166 83 186 157 140 138 (a) Find the mean and standard deviation of the weights. (Round the answers to one decimal place.) x = s = (b) What percent of the data lies within one standard deviation of the mean?(c) What percent of the data lies within two standard deviations of the mean?Which of the following statements is not true? There is only one median for each variable. One definition of the median states that, for an odd number of observations, the median is the middle score when scores are placed in order of magnitude. Another term for the median is 50th percentile. The median is generally more sensitive to (i.e., affected by) the presence of a few extreme observations than is the mean.Q1/The following table represents the number of lectures on engineering statistics for the second stage, the Department of Electrical Engineering, distributed throughout the week. Required: Find the weighted arithmetic mean and squared mean and indicate the days of the lecture? number of lectures 4 30-40 40-50 50-60 60-70 70-80 80-90 90-100 6 8 4 6 4 82.1/7Below is the frequency distribution showing the result of an IQ test of a group of| students in a certain college. Copy the table and fill all the columns for each category. CI [x - X] fQ1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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