Mathematics, 06.06.2021 14:00, xaguilar

If a random variable has the normal distribution with μ=20 and σ=5, what is the probability that it will take on a value on the interval from 12 to 15? (Hint: Use standard units formula)

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If a random variable has the normal distribution with μ=20 and σ=5, what is the probability that it...