Statistics ITU Board 2081
What are the measures of central tendency? The following are the marks obtained by 95 students in Statistics. Marks 20 30 30 40 40 50 50 60 60 70 70 80 No. of students 10 17 19 26 15 8 Find: (i) the…
5What are the measures of central tendency? The following are the marks obtained by 95 students in Statistics.
| Marks | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 |
|---|---|---|---|---|---|---|
| No. of students | 10 | 17 | 19 | 26 | 15 | 8 |
Find:
(i) the modal marks
(ii) the lowest marks of the top 10% student.
A worked answer is on its wayMeanwhile, read the Statistics I notes for this topic.
Discussion
Loading…
More Statistics I questions
What do you mean by statistics? Describe briefly. The following are the marks of 30 students in Statistics. 60 54 22 36 49 84 79 56 28 43 80 50 60 56 57 46 39…TU Board 208210What do you understand by correlation analysis? Bradford Electric Illuminating is studying the relationship between kilowatt hours (thousands) used and the…TU Board 208210Two continuous random variables X and Y have following pdf: f(x, y) = kxy, 0<x<1, 0<y<1= 0, otherwise Determine (i) the value of k (ii) marginal pdf of X and…TU Board 208210Maximal static in respiratory pressure is an index of respiratory muscle strength. The following data show the measure of maximal static in respiratory for 11…TU Board 20825Calculate an appropriate measure of central tendency from the following table. Give the reason for your choice of measure of central tendency. Age in Years…TU Board 20825Define independent events in probability. A problem of statistics is given to three students A, B and C whose chances of solving the problem are in the ratio…TU Board 20825