(09.05)
The ages of trees in a forest are normally distributed with a mean of 25 years and a
standard deviation of 4. Approximately what percent of the trees are between 20 and 30
years old? (2 points)
10.56%
68.32%
78.87%
89.44%

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.