How can the standard normal curve be used to verify the Empirical Rule for 95%?
a) The area under the curve between -1 and 1 standard deviations is approximately 68%.
b) The area under the curve between -2 and 2 standard deviations is approximately 95%.
c) The area under the curve between -3 and 3 standard deviations is approximately 99.7%.
d) The area under the curve between -4 and 4 standard deviations is approximately 100%.