Question

A TV remote control has keys for channels 0 through 9.

​a) If a key is selected at​ random, what is the probability that the key for channel 1 is​ pressed?

​b) If a key is selected at​ random, what is the probability that the key for an even number is​ pressed?

​c) If a key is selected at​ random, what is the probability that the key for a number more than 6 is​ pressed?

11.1#12

Answer 1

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