Answer
0.0119
Work Step by Step
Let's find the z-score for 5.25 ounces:
$z=\frac{X-μ}{σ}=\frac{5.25-5.11}{0.062}=2.26$
According to Table V, the area to the left of the standard normal curve for a z-score equal to 2.26 is 0.9881.
But, we want the area to the right (too heavy means $X\gt5.25~ounces$) of the standard normal curve for a z-score equal to 2.26:
$1-0.9881=0.0119$
