Final answer:
The probability that a randomly chosen student from the class plays basketball or baseball is 0.5.
Step-by-step explanation:
To find the probability that a student chosen randomly from the class plays basketball or baseball, we need to find the total number of students who play basketball or baseball.
Out of the 26 students, 8 play basketball and 11 play baseball. However, since there are 6 students who play both sports, we need to subtract this overlapping group once to avoid double counting.
Therefore, the total number of students who play basketball or baseball is 8 + 11 - 6 = 13.
Finally, we can calculate the probability by dividing the number of students who play basketball or baseball by the total number of students in the class:
Probability = Number of students who play basketball or baseball / Total number of students in the class = 13 / 26 = 0.5