Decide which of the following statements are true.
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O The total area under a normal distribution curve with a standard deviation of 4 is the same as the area under a nor
distribution curve with a standard deviation of 12.
O The line of symmetry for all normal distributions is x = 0.
The inflection points for any normal distribution are one standard deviation on either side of the mean.
The x-axis is a vertical asymptote for all normal distributions.