Teaching SUPER TET - UP Assistant Teacher Mock Test Series Mathematics Statistics Measures of Central Tendency
The mean score of 70 students was found to be 27. Later it was found that the scores of five students were incorrect, which were recorded as 17, 23, 18, 20 and 12. What is the mean if the incorrect scores are excluded?
1
30.5
2
27.7
3
29.2
4
25.7