The Following Shows the Number of Job Losses and Gains

question 153

Essay

The following shows the number of job losses and gains (in thousands) between 2008 and 2009 for a sample of seven cities. $$\begin{array}{ l r } &\text { Job Change }\\\text { City } & \text { (in thousands) } \\\text { Memphis } & - 11 \\\text { Nashville } & - 7 \\\text { Atlanta } & - 6 \\\text { Chattanooga } & - 5 \\\text { Birmingham } & - 5 \\\text { Huntsville } & 0 \\\text { Knoxville } & 6\end{array}$$ ​
a.
Compute the mean.
b.
Determine the mode.
c.
Determine the median.
d.
Determine the standard deviation.

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Definitions:

Secondary Circular Reactions

Secondary circular reactions, a concept in Piaget's theory of cognitive development, refer to the repetition of actions that produce an effect on the environment, observed in infants aged 4-8 months.

Primary Circular Reactions

A development stage in infants characterized by repetitive actions upon their own body, intended for the pleasure and sensory exploration these actions provide.

Sensorimotor Period

A stage in early childhood (from birth to about 2 years of age) where learning occurs through sensory experiences and manipulating objects.