The function f(x) is shown on the graph. What is f(0)?
15
12 only
0 2 and 3 only
-2,-1, 1, and 2 only
O-2, -1, 1, 2 and 12
12
Ax)
94
3
-7 -5 -5 -4 -3 -
1
B 4 5 6 7 x
-6+
-9+
-12 +
-15+

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%