The right-hand "tail" of the standard normal curve can be defined as the part that lies at least 2 standard deviations to the right of the mean. the left-hand "tail" can be defined as the part that lies at least 2 standard deviations to the left of the mean. according to the empirical rule, approximately what percentage of the area under the whole curve is in the two tails? (hint: find the percentage for each tail individually.) round your answer to the nearest tenth.
a) 16%
b) 5%
c) 2.5%
d) 32%