Question 2 (2.5 points)

Select the best graph or chart for presenting the National Budget that has just been approved by Congress that addresses major agency allocations.

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Question 3 (2.5 points)

Two hundred and fifty (250) unrelated freshmen at UMUC were asked how many siblings they had. The results are shown in the graph below.

Answer the following question based on the shape of the histogram.

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Question 4 (2.5 points)

Two hundred and fifty (250) unrelated freshmen at UMUC were asked how many siblings they had. The results are shown in the graph below.

Answer the following question based on the shape of the histogram.

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Question 5 (2.5 points)

The chart below contains 3 variables, Conference Rooms, Room Capacity and Room Size.

Classify the variable Conference rooms

Conference Rooms are

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Question 6 (2.5 points)

The chart below contains 3 variables, Conference Rooms, Room Capacity and Room Size.

Classify the variable Room size:

Room size is

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Question 7 (2.5 points)

A data set consists of 10 numbers. If each number in the data set has its value increased by 5 by how much will the mean of the scores in the data set change? 

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Question 8 (2.5 points)

A data set consists of 10 numbers. If each number in the data set has its value increased by 5 by how much will the Standard Deviation of the scores in the data set change?

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Question 9 (10 points)

Question 9 options:

A coin is flipped twenty times and landed heads fifteen times. Based upon this information, answer the following questions

If the coin is balanced (fair) what is the probability of a head on the next toss?

Fair means the equally likely principle applies.

Enter answer as a decimal to 2 place accuracy.  Do not include a 0 to the left of the decimal point.

Question 10 (10 points)

Question 10 options:

The Stem-and-Leaf Diagram below depicts the length of 25 long distance telephone calls for a recently engaged couple separated due to an unexpected business trip.

Please answer the following questions.

When possible enter all answers as integers (0 decimal places)

If it is necessary to enter a non integer number, enter number to 1 decimal place.

Note: There are 25 long distance telephone calls.       2|6 = 26 

What is the Median time for the long distance phone calls?

Question 11 (20 points)

Question 11 options:

The Contingency table cross classifies institutions of higher education in the United States by region and type, public or private.

Enter all answer as a fraction (not reduced) or a decimal rounded to 2 decimal places with no 0 to the left of the decimal point.

Do not enter an answer as a percent.

Suppose an institution of higher education is selected at random.

Determine the probability the institution obtained is:

Located in the West?

Question 12 (20 points)

Question 12 options:

A shipment of TVs contains units that are 70% top quality.  Thirty percent (30%) of the TVs are poor quality.

Two TVs are randomly selected from the shipment and tested.

What is the probability that both TVs selected are top quality?

Enter answer as a decimal rounded to 2 decimal places.

Do not include the 0 to the left of the decimal point.

Do not enter answer as a percent.