Final answer:
P(EM) means the probability of both events E and M occurring. In this case, event E represents landing on an even number and event M represents landing on a multiple of three. The probability of landing on an even number that is also a multiple of three is 1/6.
Step-by-step explanation:
P(EM) means the probability of both events E and M occurring. In this case, event E represents landing on an even number and event M represents landing on a multiple of three. To find the probability of both events occurring, we need to determine the numbers that satisfy both conditions. The numbers that are both even and multiples of three are 6. Since there are 6 possible outcomes when rolling a fair, six-sided number cube, the probability of landing on an even number that is also a multiple of three is 1/6.