Giving a test to a group of students, the grades and gender are summarized below A...

Question

Question

Giving a test to a group of students, the grades and gender are summarized below

If one student was chosen at random,

find the probability that the student got a B.

Give your answer as a fraction or decimal

math Statistics-And-Probability

Answer 1

Answer #1

solution

given that

b grade student =30'total all student=71

probability=b grade student /total all student

=30/71

=0.4225

probability=0.4225

Answer 2

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