Question

a) the probability of an event that cannot occur is 0.
b) the probability of an event that must occur is
1.
2.
0.
impossible to calculate.

Explanation:

Analyze the first statement

The first statement is "The probability of an event that cannot occur is 0." This is a fundamental rule of probability representing an impossible event.

Analyze the second statement

The second statement is "The probability of an event that must occur is [blank]." An event that must occur is a certain event, which has a probability of 1.

Select the correct option

From the dropdown options (1., 2., 0., impossible to calculate), the value corresponding to a certain event is 1.

Answer:

Question a

The probability of an event that cannot occur is <blank>0</blank>.

Question b

The probability of an event that must occur is <blank>1</blank>.