Seem a obtained three following scores (out of 100) on a spelling test: 80 85 90 71 60 100.What is her mean score?
Angelina obtained the following scores (out of 50) in six mathematics tests. What is her mean score?
33.5,40.5,25.5,45.5,48,32
Sara got 98, 100, 65, 78, 98, 35, 100, 100, 45 and 50 on her 10 consequitive reading tests each worthing 100 marks. What is the mean of her test scores?