Answer:
Option: C is the correct answer.
P(not blue) is:
C. 0.8
Explanation:
The results of the experiments on spinning a colored spinner 50 times is:
Color Red Blue Green Yellow
# of times spun 20 10 9 11
This means that the total number of outcomes=50
and the number of outcomes which are not blue is the outcome such that spin is red, green and yellow.
i.e. Number of outcomes which are not blue=20+9+11
= 40
Hence, the P(not blue) is the ratio of the number of outcomes which are not blue to the total number of outcomes.
i.e. P(not blue)=40/50=4/5=0.8
Hence, option: C is the answer.
C. 0.8