2. the percentage of marks obtained by monthly unit test are given below I 2 3 No. of marks 51 76 62 115 5 unit Test to Find the probability that the Students geti. 1) Frist class is at least 60% marks .2) Marks b/w 70% and 80% . 3) a distinction ie 75% or above. 4)
less than 65% marly.
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