SAT Reading , pls help me answer these question

Consider a normal distribution of frog weights with u = 500 grams and o = 65 grams. a sample of size 2,000 is drawn from this population. approximately how many of the 2,000 cases would you expect to find between 435 and 565?

An example of a fine motor skill is

Students who utilize the" read, underline and eliminate" strategy are more likely to get better test grades. why do you think this is so