The graph shows a distribution of data with a standard deviation of 6. a graph shows the horizontal axis numbered 60 to x. the vertical axis is unnumbered. the graph shows an upward trend from 60 to 75 then a downward trend from 75 to 90. which statement is true about the data point 84? it is within 1 standard deviation of the mean. it is within 2 standard deviations of the mean. it is exactly 3 standard deviations from the mean. it is exactly 4 standard deviations from the mean.