Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
Probability of choosing a red spiral = number of red spiral / total sum of spirals in the bag
Ŷ<span> “y-hat” = predicted average y value for a given x, found by using the regression equation. </span>p̂ “p-hat” -----> <span>proportion </span>I can't type y-bar but its a straight line on the top of letter y.
