plz solve it..........
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this information is insufficient
Step-by-step explanation:
probability of students say 'yes ' is 3/4 and probability of students say 'No' is 1/4 (1-3/4).
now, 50% student present minimum.=15
minimum absent student is 2.
number of present student can be 16 to 28
for this student probability of answer 'yes' can be
12/16, 15/20, 18/24, 21/28 all are 3/4
this is possible present student 16,20,24,28 anything.
so, given information is insufficient.
if some information given about absent student answering 'Yes' or 'No' than we can find.
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