Mathematics, 25.10.2021 23:10 SMNS625

In a standard normal curve with u=500 and q=100 , what interval centered at the mean contains 68% of the data set?(the u and q are stand ins for the real symbols) 400 to 600
300 to 700
200 to 800
450 to 550

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In a standard normal curve with u=500 and q=100 , what interval centered at the mean contains 68% of...