Jackson is interested in the number of memories people can recall. He knows that the number of memories recalled is normally dis
tributed in the general population, with a population mean of 30 and a population standard deviation of 5. What numbers of memories separate the middle 90% of the distribution?
88 is a solution to 1/8 x =11, since a solution means that x is equal to that number, so in this scenario, x=88. When substituted(88*0.125), the same answer, 11, is obtained.