Standard Deviation Answers

The theoretical probability of an event is the number of ways an event can occur divided by the total number of possible outcomes: What is the theoretical probability of selecting a king from a standard deck of 52 playing cards?

The experimental probability of an event is based on the results of an experiment that is repeated many times: A coin is tossed 40 times. Heads appeared 18 times. Find the experimental probability of landing on heads.

If two fair dice are rolled, there are two different ways to roll a sum of 3:How many different ways are there to roll a sum of 4?