Answer:
a) 0.1
b) 0.5
c) 0.3
Explanation:
A TV remote control has keys for channels 0 through 9.
So, the total possible outcomes = 10
a) If a key is selected at random, what is the probability that the key for channel 8 is pressed?
the possible outcome of 8 = 1
P(8) = (the possible outcome of 8)/(total outcomes) = 1/10 = 0.1
b) If a key is selected at random, what is the probability that the key for an even number is pressed?
The even numbers are = 0 , 2 , 4 , 6 , 8
the possible outcome of even number = 5
P(even number) = 5/10 = 1/2 = 0.5
c) If a key is selected at random, what is the probability that the key for a number more than 6 is pressed?
The numbers more than 6 are = 7 , 8 , 9
the possible outcome of more than 6 = 3
P(numbers more than 6) = 3/10 = 0.3