Question

Probability is:

a. The measure of how likely an event is to occur.
b. The ratio of total possible outcomes to desired outcomes.
c. Not conveyed as a decimal or a percent.
d. None of the above.

Answer 1

An indicator of how likely an event is to occur.

Probability is the reciprocal of the ratio shown here.

Can be expressed as decimals or percents.

Explanation:

Answer 2

Option a) The measure of how likely an event is to occur.

Explanation:

We define probability of an event as:

• It tells us how likely the event is to occur.

• Mathematically, it is defined as

`\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}`

• It ranges from 0 to 1.
• An event with probability with 0 probability is impossible event and an event with probability 1 is sure event.
• Probability of an event can never be negative.
• It can be conveyed in decimals and percentages.
• It tells us how often a event will happen.
• Thus, the correct interpretation for probability is :

Option a) The measure of how likely an event is to occur.