Answer:
x 
Step-by-step explanation:
:)
Answer:
Reflection
Step-by-step explanation:
Because reflecting yourself in a mirror means pre image to image
only the first statement is true - it is the experimental probability. the rest is incorrect: the ratio is not the number of trials; the theoretical probability should be 0.5 (for unbiased coins); ratio never represents a number of occurences.
100% - 81% = 19%
19% did not pass.