A normal distribution has μ = 55 and σ = 5. What is the probability of randomly selecting a score greater than or equal to 55 from this distribution?
a. About 16%
b. About 84%
c. About 20%
d. About 22%
z score for 55 = (55 - 50)/5 = 1
Hence,
P(Selecting a score greater than or equal to 55 from this distribution)
= P(z > 1)
= About 16%
Option A is correct.
A normal distribution has μ = 55 and σ = 5. What is the probability of...
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