Ten rookie police officers started working at the Pine Valley Police Dept in 2005. At that time, they all began with the same salary ($36,000/year). Today, 10 years later, the salaries of those same 1

Ten rookie police officers started working at the Pine Valley Police Dept in 2005. At that time, they all began with the same salary ($36,000/year). Today, 10 years later, the salaries of those same 10 officers are the following:

Police Officer Salaries 10 Years Posthire

OfficerSalary ($)

148,000

248,000

350,000

451,000

552,000

654,000

757,000

858,000

962,000

1069,000

  • a) Calculate the mode, median and mean.
  • b) Write a sentence or two describing this distribution
  • c) What is the shape of the distribution? Explain your reasoning.

3. Complete the following problem:

In a study of parole board decision making in a Midwestern state, offenders were measured on the number of previous incarcerations. The data is presented below.

Prior Incarcerations (x)

Frequency (f)

6

1

5

2

4

3

3

15

2

35

1

85

0

312

Using the data in the table, do the following:

  • a) Calculate the mode, median and mean.
  • b) Write a sentence or two describing this distribution
  • c) What is the shape of the distribution? Explain your reasoning.

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