In a certain high school class, consisting of 60 girls and 40 boys, it is observed that 24 girls and 16 boys wear eye glasses, if a student is picked at random from this class. What is the probability that student picked at random is a boy, what is the probability that a student wears eye glasses?
0.4
In a certain school class, consisting of 60 girls and 40 boys, it is observed that 24 girls and
16 boys wear eyeglasses. If a student is picked at random from this class, find the
following probabilities:
To determine the probability of picking a boy at random from the class, we need to calculate the ratio of the number of boys to the total number of students.
Given that there are 60 girls and 40 boys in the class, the total number of students is 60 + 40 = 100.
Therefore, the probability of picking a boy at random can be calculated as follows:
Probability of picking a boy = Number of boys / Total number of students
= 40 / 100
= 0.4 or 40%
So, the probability of picking a boy at random from the class is 0.4 or 40%.
Now let's determine the probability that a student wears eyeglasses.
Given that 24 girls and 16 boys wear eyeglasses, the total number of students who wear eyeglasses is 24 + 16 = 40.
Again, the total number of students in the class is 100.
So, the probability that a student wears eyeglasses can be calculated as follows:
Probability of wearing eyeglasses = Number of students wearing eyeglasses / Total number of students
= 40 / 100
= 0.4 or 40%
Hence, the probability that a student picked at random wears eyeglasses is 0.4 or 40%.
There are 100 students... and 40 boys.
What is the probability of getting a boy?
Student wears eye glasses. It looks like 40 wear eye glasses so 40/100 again.
I am not sure if the question is two separate problems or they are trying to say .. if you picked a boy and that he wears glasses? That would be a different approach.