Question

you collect job satisfaction ratings from three employee groups, and the plot below displays their distributions. compare and eyeball - estimate the standard deviations of the three groups. which group appears to have the highest standard deviation? job satisfaction ratings of three groups job satisfaction ratings 3 (the yellow curve) 2 (the turquoise curve) 1 (the blue curve)

Explanation:

Step1: Recall standard - deviation concept

Standard deviation measures spread. A flatter curve has a larger standard deviation.

Step2: Observe the curves

Curve 1 is the tallest and narrowest, indicating low spread. Curve 2 is less tall and wider than 1. Curve 3 (the yellow curve) is the flattest and widest among the three.

Answer:

3 (the yellow curve)