Assume that adults have IQ scores that are normally distributed with a meen of mu = 100 and a standard deviation sigma = 20. Find the probability that a randomly selected adult has an IQ between 84 and 116 and type an integer or decimal rounded to four decimal places. Make sure to use the positive or magelive z score charts attached, in the eBook on MSL, or in a hardcopy of the textbook neg z scores pdf pos z scores pdf O A. 0 8176 O B. 0.6139 O C. 0.4177 O D. 0.5763