Answer: a & b
Step-by-step explanation:
The sum of the probabilities should equal 1.0
a) probability of 5/3 is greater than 1 shows that the probability distributions will result in a sum greater than 1.
b) The sum of the probabilities is 31/12 shows that the sum of the probability distributions is unequal to 1.0.
c) The result is less than 0 is irrelevant. The data could be temperature (or something else which can be measured as a negative value).
d) The probabilities have different denominators is irrelevant. Fractions can be reduced and unlike denominators can be turned into like denominators. The most important thing is that their sum is 1.0.
