tor at a college noted that the grades students were normally distributed with a mean o and a standard deviation of 10. The Doctor has informed his students that 6.3 percent of students receive A, while only 2.5 percent of his students failed the course and received F's. a) What is the minimum score needed to make an A? b) What was the maximum score among those who received an F? c) If there were 4 students who did not pass the course, how many students took the test? Note: interpret all vour results
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
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