If one score is randomly selected from a normal distribution with µ = 100 and σ = 20,the probability of obtaining a score less than X = 130 is p = 0.9987.

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The probability of obtaining a score less than X = 130 from a normal distribution with µ = 100 and σ = 20 is not exactly 0.9987. The exact probability would depend on the Z-score calculation and can be found using standard normal distribution tables or software, but it is typically less than 0.9987 for X = 130.

If One Score Is Randomly Selected from a Normal Distribution