Answer:
a) If a key is selected at random, what is the probability that the key for channel 1 is pressed?
1/10
There are 10 channels in total. 9 channels + 0 channel.
b) If a key is selected at random, what is the probability that the key for an even number is pressed?
5/10
0,2, 4, 6, 8 < The even numbers out of 10 channels
c) If a key is selected at random, what is the probability that the key for a number more than 6 is pressed?
3/10
7, 8, 9 are the numbers greater than 6
