When calculating a probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability of a spinner landing on a number less than five we will use the Probability Formula.
P=Favorable Outcomes/Possible Outcomes
Now we can look at the spinner and find the number of possible outcomes.
On the spinner there are six values. Therefore, the number of possible outcomes is 6. Now we can find how many outcomes will result in the spinner landing on a number less than five.
1, 2, 3, 4, 5, 6
There are 4 numbers less than five. This is the number of favorable outcomes. Now we have enough information to calculate P(Less than5).
