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Based on the data in this two-way table, if a girl is randomly selected, what is the probability that she will have above-average grades?

Gender/Grade Below Average Above Average Total

Boy 14 23 37

Girl 16 22 38

Total 30 45 75

User Sonicboom
by
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1 Answer

4 votes

The above two way table shows the number of girls and boys who scored below average and above average grades.

We have to find the probability that a randomly selected girl will have above average grades.

Probability is the measure of an likelihood that an event will occur.

Probability is calculated by the formula =
(Favourable outcomes)/(Total outcomes)

Total number of girls = 38

Number of girls Girls who have above average grades = 22

P(randomly selected girl with above average grades)=
(22)/(38)

= 0.58

User Tbuehlmann
by
4.9k points