a. A data value 2.6 standard deviations below the mean.
b. A data value 0.2 standard deviation below the mean.
c. A data value 2.2 standard deviations above the mean.
a. This data value is 2.6 standard deviations below the mean. This means that it is located in the left tail of the normal distribution curve. It is relatively far from the mean, indicating that it is an outlier or rare observation.
b. This data value is 0.2 standard deviations below the mean. It is slightly below the mean but not significantly far from it.
c. This data value is 2.2 standard deviations above the mean. This means that it is located in the right tail of the normal distribution curve. It is relatively far from the mean, indicating that it is an outlier or rare observation.