From the test scores of 19 students that are listed below. 1. Find the 34th percentile. Interpret the result. A. 59; 59% of the scores falls below 34 B. 61; 34% of the scores falls below 61 C. 59; 34% of the scores falls below 59 D. 61; 61% of the scores falls below 34 2. Find the 7th decile. Interpret the result. A. 77; 7% of the scores falls below 77 B. 80; 7% of the scores falls below 80 C. 80; 70% of the scores falls below 80 D. 77; 70% of the scores falls below 77 3. Find the interquartile range. A. 24 B. 25 C. 26 D. 27
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!
From the test scores of 19 students that are listed below.
1. Find the 34th percentile. Interpret the result.
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