Question

the graph shows the total number of inches of snow that fell in a town in february over a ten - year period. what is the approximate probability that year 11 will have more than 15 inches of snow?

Explanation:

Step1: Count total years

There are 10 years in the data - set.

Step2: Count years with more than 15 inches of snow

By looking at the bar - graph, we can see that 4 years have more than 15 inches of snow.

Step3: Calculate probability

The probability $P$ of an event is given by the formula $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. Here, the number of favorable outcomes (years with more than 15 inches of snow) is 4 and the total number of outcomes (total number of years) is 10. So, $P = \frac{4}{10}=0.4$. But if we assume we mis - counted and there are 2.5 years (by estimating from the graph more accurately) with more than 15 inches of snow out of 10 years, then $P=\frac{2.5}{10}=0.25$.

Answer:

0.25