Qualitative and Quantitative Probability

Front

What is qualitative probability?

Back

Qualitative probability refers to the likelihood of an event occurring based on descriptive terms rather than numerical values. It uses words like 'likely', 'unlikely', 'certain', or 'impossible' to express the chance of an event.

Front

What is quantitative probability?

Back

Quantitative probability is the measure of the likelihood of an event occurring expressed as a number between 0 and 1, or as a percentage. For example, a probability of 0.5 means there is a 50% chance of the event occurring.

Front

How do you calculate the probability of an event?

Back

The probability of an event is calculated using the formula: Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

What is the probability of pulling a red candy from a bag containing 20 pink, 8 red, and 12 green candies?

Back

Front

If a bag contains 20 pink candies, 8 red candies, and 12 green candies, which color is least likely to be pulled out?

Back

Red is the least likely color to be pulled out because it has the fewest candies (8) compared to pink (20) and green (12).

Front

In a shipment of 50 cabbages, if 2 are usually found to be rotten, how many rotten cabbages would be expected in a shipment of 125 cabbages?

Back

The expected number of rotten cabbages in 125 cabbages is 5.

Front

What is the likelihood of choosing a consonant from the word 'Mississippi'?

Back

The likelihood of choosing a consonant is 'Very Likely' because there are more consonants (7) than vowels (4) in the word.

Front

What is the probability of tossing a coin and it landing on tails?

Back

Front

If a factory has 800 light bulbs and a sample of 40 shows 2 non-working bulbs, how many non-working bulbs are expected in the entire factory?

Back

Based on the sample, 40 non-working bulbs are expected in the group of 800.

Front

What does it mean if an event is described as 'unlikely'?

Back

If an event is described as 'unlikely', it means that the chance of the event occurring is low, but not impossible.