Question

The dot plot shows 20 students' scores on a quiz

in English class.

Quiz Scores
If one student from the class is chosen at
random, what is the probability that he or she
scored MORE than 15 points on the quiz?

Answer 1

Answer: 12/20= 3/5

Explanation:

you have to count all the dots on the dot plot to find your denominator which is 20.

then you count all the dots that are fifteen or more and there are 12 so 12/20 is the probability which is simplified into 3/5.

Answer 2

Probability = A. 2 / 5

Explanation:

Probability = ( Number of Favorable Outcomes ) / (Total Number of Outcomes )

So the Total Number of Students = 20

Number of Students ( Dots ) scored more than 15 = 3+2+1+2 = 8

Probability = 8 / 20 = 2 / 5

Glad to Help