Simple Events Probability

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Front

What is the formula for calculating the probability of a simple event?

Back

The probability of a simple event is calculated using the formula: P(E) = Number of favorable outcomes / Total number of possible outcomes.

Front

What is an example of a simple event?

Back

An example of a simple event is flipping a coin and getting heads.

Front

What is the probability of rolling a 3 on a standard six-sided die?

Back

The probability is 1/6, since there is one favorable outcome (rolling a 3) out of six possible outcomes.

Front

How do you express probability as a percentage?

Back

To express probability as a percentage, multiply the probability (a fraction) by 100.

Front

What is experimental probability?

Back

Experimental probability is the probability determined by conducting an experiment and observing the outcomes, calculated as the number of times an event occurs divided by the total number of trials.

Front

What is the difference between theoretical probability and experimental probability?

Back

Theoretical probability is based on the expected outcomes in a perfect scenario, while experimental probability is based on actual results from experiments.

Front

If a spinner has 4 equal sections colored red, blue, green, and yellow, what is the probability of landing on yellow?

Back

The probability is 1/4, since there is one favorable outcome (yellow) out of four possible outcomes.

Front

In a class of 30 students, if there are 18 girls and 12 boys, what is the probability of randomly selecting a girl?

Back

The probability is 18/30 or 3/5.

Front

What is the probability of drawing a heart from a standard deck of cards?

Back

The probability is 1/4, since there are 13 hearts in a deck of 52 cards.