I see many students in my intro statistics courses missing problems related to the normal distribution. Common Mistake #1: One especially common mistake

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Problems X is a normally normally distributed variable with mean μ = 30 and standard deviation σ = 4. Find a) P (x 21) c) P (30 < x < 35) A radar unit is used to measure speeds of

Decide mathematic equations

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Determine mathematic problem

I need help determining a mathematic problem.

In order to solve this problem, we first need to understand what this distribution will look like. Remember that a standard normal distribution has the mean at the center, with a z-score of 0.