Study results

There are 7 students in the class with excellent results, 6 praiseworthy, 5 good, 4 sufficient and 3 insufficient students. What is the probability that it will be a good student when summoned?

Correct result:

p =  0.2

Solution:

n=7+6+5+4+3=25 p=5n=525=15=0.2



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