Boys Not boys Total
Juniors 75 65 140
Not Juniors 335 225 560
Total 410 290 700
The probability that a student chosen at random is a boy = 41 / 70
The probability that a boy selected at random is a junior is 15 / 82
The probability that of choosing a student that is a junior and a boy is 3/ 28
The probability of randomly choosing a student that is a girl given that she is not a junior is 45 / 58.
The probability of randomly selecting a girl is 29 / 70.
What are the probabilities?
The probability that a student chosen at random is a boy = total number of boys / total number of students
410 / 700 = 41 / 70
The probability that a boy selected at random is a junior = total number of male juniors / total number of boys
75 / 410 = 15 / 82
The probability that of choosing a student that is a junior and a boy = total number of male juniors / total number of students
75 / 700 = 3/ 28
The probability of randomly choosing a student that is a girl given that she is not a junior = total number of girls that are not juniors / total number of girls
225 / 290 = 45 / 58
The probability of randomly selecting a girl = total number of girls / total number of students
290 / 700 = 29 / 70
To learn more about probability, please check: https://brainly.com/question/13234031
#SPJ1
