Question 1 (1 point) For each of the following variables, identify an appropriat

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Question 1 (1 point)

For each of the following variables, identify an appropriate graph or chart that could be used.
(I) Completion status of construction project (e.g. phase I, phase II, phase III)
(II) Level of employee at a factory (e.g. general manager, supervisor, hourly worker)

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Question 2 (1 point)

For each of the following variables, identify the level of measurement (nominal, ordinal, interval, or ratio).
(I) Car safety rating given by safercar.gov (e.g. one star, two stars, up to 5 stars)
(II) Grade point average (e.g. 1.0, 2.0, 3.0 , 4.0)

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Question 3 (1 point)

For each of the following variables, identify the level of measurement (nominal, ordinal, interval, or ratio).
(I) Birth month of servers at local restaurant
(II) Number of auto insurance claims in a month

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Question 4 (1 point)

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Question 5 (1 point)

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Question 6 (1 point)

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Question 7 (1 point)

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Question 8 (1 point)

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Question 9 (1 point)

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Question 10 (1 point)

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Question 11 (1 point)

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Question 12 (1 point)

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Question 13 (1 point)

The scores of 10 golfers were 75.8; 73.3; 77.6; 76.9; 81.6; 68.4; 78.7; 70.2; 75.2; 69.6. Calculate the standard deviation of the dataset.

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Question 14 (1 point)

Question 14 options:

1) (I) Pie chart , and (II) Bar graph 2) (I) Bar graph , and (II) Histogram 3) (I) Histogram , and (II) Stem-and-leaf display 4) (I) Stem-and-leaf display , and (II) Pie chart 5) (I) Stem-and-leaf display , and (II) Stem-and-leaf display

Explanation / Answer

Result:

Question 1 (1 point)

For each of the following variables, identify an appropriate graph or chart that could be used.
(I) Completion status of construction project (e.g. phase I, phase II, phase III)
(II) Level of employee at a factory (e.g. general manager, supervisor, hourly worker)

1)

(I) Pie chart , and (II) Bar graph

Question 2 (1 point)

For each of the following variables, identify the level of measurement (nominal, ordinal, interval, or ratio).
(I) Car safety rating given by safercar.gov (e.g. one star, two stars, up to 5 stars)
(II) Grade point average (e.g. 1.0, 2.0, 3.0 , 4.0)

5)

(I) Ordinal , and (II) Interval

Question 3 (1 point)

For each of the following variables, identify the level of measurement (nominal, ordinal, interval, or ratio).
(I) Birth month of servers at local restaurant
(II) Number of auto insurance claims in a month

4)

(I) Nominal , and (II) Ratio

Question 4 options:

2)

Right-skewed

Question 5 options:

3)

Symmetric

Question 6 options:

4)

Left-skewed

Question 7

IQR=0.279-0.234 = 0.0453)

3). 0.045

Question 8: IQR = 72.7-53.2= 19.5

1). 19.5

Question 9 IQR = 26-11=15

1).15

Question 10.

2) 25%

Question 11

4). 0%

Question 12

4). 50%

Question 13

4). 4.298

Question 14

2)

The median is approximately equal to 1,336.57.

1)

(I) Pie chart , and (II) Bar graph

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