Probability

Problem:	A spinner has 4 equal sectors colored yellow, blue, green and red. What are the chances of landing on blue after spinning the spinner? What are the chances of landing on red?
Solution:	The chances of landing on blue are 1 in 4, or one fourth.
	The chances of landing on red are 1 in 4, or one fourth.

This problem asked us to find some probabilities involving a spinner.  The probability of event A is the number of ways event A can occur divided by the total number of possible outcomes. Let's take a look at a slight modification of the problem from the top of the page. Experiment 1:   A spinner has 4 equal sectors colored yellow, blue, green and red. After spinning the spinner, what is the probability of landing on each color? Outcomes:   The possible outcomes of this experiment are yellow, blue, green, and red. Probabilities:   P(yellow)  =  # of ways to land on yellow  =  1 total # of colors  4    P(blue)  =  # of ways to land on blue  =  1 total # of colors  4    P(green)  =  # of ways to land on green  =  1 total # of colors  4    P(red)  =  # of ways to land on red  =  1 total # of colors  4