Business Statistics In a class of 25 students,, if 12 have brown eyes, 7 have blue eyes, and 6 have green eyes, now many degrees in a pie chart would the blue eyes represent?

Hint: a Circle has 360 degrees.

Is the following statement a statistic or a parameter? A sample of students is selected, and the average (mean) number of textbooks purchased this semester is 4.2.

Question 1 options:

	Statistic
	Parameter

Is the following statement addressing discrete or continuous data? In a survey of 1059 adults, it was found that 359 of them have guns in their home.

Question 2 options:

	Continuous Data
	Discrete data

Which of the four levels of measurement is the most appropriate? Consumer Reports magazine ratings of "best buy, recommended, not recommended".

Question 3 options:

	Ratio
	Nominal
	Interval
	Ordinal

If we survey students as to what color vehicles they drive, would we classify the data as quantitative or qualitative?

Question 4 options:

	Qualitative
	Quantitative

6/ Construct a relative frequency distribution for the following data set:

Systolic

Blood Pressure (mm/Hg) Frequency Relative Freq.

80-99	7
100-119	26
120-139	5
140-159	1
160-179	0
180-199	1

7/ Calculate the mean, median, mode, and standard deviation for the following data set:

{28,25,31,19,27,29,24,26,19,20}

8/ The Empirical Rule says about 95% of the observations in a bell-shaped frequency distribution will lie within plus and minus ______________ standard deviations.