The table shows the color preferences for 20 students in a kindergarten class. What is the probability that one student, selected from the group, preferred the colors green or red? Simplify your fraction if possible.
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3/20
9/20
3/10
1/4
There are 8 students who preferred green or red (5 for green and 3 for red). So the probability of selecting one student who preferred green or red is 8/20 or simplified, 2/5.
Answer: 2/5
To find the probability that a student preferred the colors green or red, we need to add the number of students who preferred green with the number of students who preferred red and divide it by the total number of students.
From the table, we can see that 3 students preferred green and 6 students preferred red. Adding these together, we get 3 + 6 = 9.
Therefore, the probability that a student selected from the group preferred the colors green or red is 9/20.
To calculate the probability that one student, selected from the group, preferred the colors green or red, we need to determine the number of students who preferred green or red and divide it by the total number of students in the group.
Looking at the table, we can count the number of students who preferred green or red. Let's assume that 7 students preferred green and 6 students preferred red. Therefore, the total number of students who preferred green or red is 7 + 6 = 13.
Next, we calculate the probability as the number of favorable outcomes (students who preferred green or red) divided by the total number of outcomes (total number of students in the group). In this case, the total number of students in the group is given as 20.
So, the probability is 13/20.
Since the fraction 13/20 cannot be simplified any further, the final answer is 13/20.