Use the following table for Questions 7-14 The following table provides daily sales of all headsets during a 45-day sales cycle period. Construct a frequency table using the following upper boundaries for bins: 23, 34, 45, 56, 67, 78

72	20	52
46	65	47
37	20	12
54	46	45
53	75	61
35	13	14
62	28	30
57	21	59
72	45	52
59	69	52
30	64	37
18	24	69
52	33	51
66	61	78
63	26	39

1. What is the frequency for 35-45 headsets sold?
   1. 6
   2. 7
   3. 8
   4. 10

1. What is the relative frequency for 46-56 headsets sold?
   1. 6
   2. 10
   3. 22.22%
   4. 13.33%

1. What is the cumulative frequency for 24-34 headsets sold?
   1. 42.2%
   2. 29.85%
   3. 28.89%
   4. 65.0%

1. Using the technique in the textbook (not the upper limits specified above), what is calculated class wide for this distribution?
   1. 6
   2. 11
   3. 45
   4. 64

1. What is the mean number of headsets sold during the observed period?
   1. 22.22
   2. 46.31
   3. 48.22
   4. 64.44

1. What is the median number of headsets sold during the observed period, using Excel?
   1. 35
   2. 42
   3. 51
   4. 67

1. What is the Standard Deviation of this headset sales?
   1. 18.47
   2. 19.76
   3. 32.84
   4. 55.66

1. What is the variance of headset sales?
   1. 186.24
   2. 276.68
   3. 341.01
   4. 347.86

1. Which of the following are correct?
   1. Negative probability values are possible
   2. The sum of all the probabilities for the simple events in a sample space must equal 1
   3. Probabilities greater than one are possible
   4. If P(A) = 0 then with certainty Event A will occur
   5. Both B and D are correct

1. Which of the following are ways to calculate probability?
   1. Classical
   2. Empirical
   3. Subjective
   4. All of the above are correct