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The final marks in mathematics of 30 stu...

The final marks in mathematics of 30 students are as follows: 53,61,48,60,78,68,55,100,67,90,75,88,77,37,84 58,60,48,62,56,44,58,52,64,98,59,70,39,50,60 Arrange these marks in the ascending order, 30 to 39 one group, 40 to 49 second group etc. Now answer the following: What is the highest score? What is the lowest score? What is the range? If 40 is the pass marks how many have failed? How many have scored 75 or more? Which observations between 50 and 60 have not actually appeared? How many have scored less than 50?

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The final marks in mathematics of 30 students are as follows:53, 61, 48, 60, 78, 68, 55, 100,67,90 75,88,77,37,84,58,60,48,62,56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60 (i) Arrange these marks in the ascending order. 30 to 39 one group, 40 to 49 second group, etc. (ii) What is the highest score? (iii) What is the lowest score? (iv) What is the range?

The number of runs scored by a cricket player in 25 innings are as follows: 26,35,94,48,82,105,53,0,39,42,71,0,64,15,34,67,0,42,124,84,54,48,139,64,47 Rearrange these runs in ascending order. Determine the player, is highest score. How many times did the player not score a run? How many centuries did he score? How many times did he score more than 50 runes?

Find the mean of the following numbers : 62,58,84,71,68,70,53,63,56 and 65.

In a mathematics test given to 15 students, the following marks (out of 100) are recorded:41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60 Find the mean, median and mode of this data

The score of Ishita in Mathematics is 25 more than the two third of her score in Science. If she scored x marks in Science, determine her score in Mathematics.

If Ramesh score 50 marks in English and 60 marks in Math. Find out the average marks he secure.

Find the mean deviation from the mean for following marks: 37, 48, 50, 23, 47, 58, 29, 31, 40.

On the first test of the semester, Barbara scored a 60. On the first test of the semester, Barbara scored a 75. By what percent did Barbara's score improve?

The class mean score on a test was 60, and the standard deviation was 15. If Elena's score was within 2 standard deviations of the mean, what is the lowest score she could have received?

You scored 80% marks. Total marks were 300. How much did you score ?

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