Which table shows a linear relationship

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%

Having a hard time understanding this question (see attachment).

Hundred and tens tables to make 430 in five different ways