Asample data set has a mean of 122.3 and a standard deviation of 18.5. convert a score of 168.4 to a z score and determine if the score is "usual" or "unusual" 1.23; usual -1.23; usual d.49; unusual -2.49; unusual

Given mean =122.3 and standard deviation =18.5

                                                                   ≈2.49

As a general rule z-scores lower than -1.96 or higher than 1.96 are considered unusual.

Since our z-score = 2.49>1.96 , it is unusual.

Hence correct option is 'C'  = "2.49 ; unusual"

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.

yes   because as the functions are graphed they eventually will intersect unless otherwise

step-by-step explanation: