Question
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
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.
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