1.

Given below is the frequency distribution of marks of 70 students of Class-9thMarks30 - 4040 - 5050 - 6060 - 7070 - 8080 - 90 Number of Students1225108105If a student is selected at random, then the probability that his marks are less than 70 is

Answer»

Given below is the frequency distribution of marks of 70 students of Class-9th






















Marks30 - 4040 - 5050 - 6060 - 7070 - 8080 - 90
Number of Students1225108105

If a student is selected at random, then the probability that his marks are less than 70 is


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