I need the attached file to be fully answered with good answers and I need a good grade on this assignment
Q1. Below is a table depicting the total number of arrests made for three different police departments over a five-month period. Identify the mean number of arrests for each police department. Identify the median number of arrests for each department. (5 Points)
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*This is ungrouped data.
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Equation for Mean: Sum of data points (arrests)/number of data points (number of months).
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January |
February |
March |
April |
May |
|
Baltimore Police Department |
67 |
87 |
54 |
99 |
78 |
Denver Police Department |
85 |
90 |
44 |
80 |
46 |
Seattle Police Department |
32 |
101 |
65 |
88 |
55 |
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Q2.Identify the mode for of the following graphs (5 points)
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- Graph 1 Mode:
- Graph 2 Mode:
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Number of Years of Experience Before Promotion in a Sample of Six District Court Attorney’s
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District Court |
Frequency |
Pullman, WA |
0 |
Longmont, CO |
1 |
Las Cruces, New Mexico |
9 |
Eugene, OR |
6 |
Baca Raton, FL |
12 |
Muncie, IN |
8 |
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Q3. Below are data on the number of previous school detentions for two samples of youth in a juvenile detention center, along with the mean of each group. Which group mean would be the most helpful in understanding the average number of previous school detentions? Why? (2-3 sentences) (5 points)
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Group 1:
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Youth: |
# of Previous School Detentions: |
Youth 1 |
4 |
Youth 2 |
5 |
Youth 3 |
4 |
Youth 4 |
7 |
Youth 5 |
5 |
Youth 6 |
4 |
Youth 7 |
5 |
Youth 8 |
6 |
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Group 1 mean number of school detentions: 5
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Group 2:
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Youth: |
# of Previous School Detentions: |
Youth 1 |
4 |
Youth 2 |
18 |
Youth 3 |
5 |
Youth 4 |
5 |
Youth 5 |
7 |
Youth 6 |
6 |
Youth 7 |
7 |
Youth 8 |
5 |
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Group 2 mean number of school detentions: 7
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Q4. How is a skewed distribution different from a normal distribution? What causes a negative skewed distribution? What causes a positive skewed distribution? (Response should be between 3-4 sentences) (5 points)
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