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For the normal distribution in statistics, when do i need to use the continuity factor?
For the normal distribution in statistics, when do i need to use the continuity factor? For example, I am asked, "Test scores on a university admissions test are normally distributed, with a mean of 500 and deviation of 100. What is the probability that a randomly selected applicant scores between 425 and 575." And by the logic of the continuity factor I am guessing instead of using 425 and 575 as values i would actually use 424.5 and 575.5 to make up for that area. I am just confused when I need to use the continuity factor and if I need to use it EVERY time we are using a discrete variable or only at certain times. Any help would be greatly appreciated. Thanks!
