Straighterline Business Statistics Quiz 1
According to Chebyshev's Theorem, 75% percent of the observations lie within plus and minus 2.00
average mean deviations. - ✔✔ correct answer False
The order that runners finish in a race would be an example of continuous data. - ✔✔ correct answer
False
For an ordered data set with an even number of ungrouped values, half of the values will be less
than the median. - ✔✔ correct answer True
What level of measurement is the price of an admission ticket to a movie theater? - ✔✔ correct
answer Ratio
If a variable is measured at the interval or ratio level, all the values are included when computing the
mean. - ✔✔ correct answer True
What is the relationship among the mean, median and mode in a symmetric distribution? - ✔✔
correct answer They are all equal
For any data set, which measures of central location have only one value? - ✔✔ correct answer
Mean and median
For any data set, Chebyshev's Theorem estimates the proportion of observations that occurs within k
standard deviations of the mean, where k is greater than 1.0. - ✔✔ correct answer True
A listing of 100 family annual incomes is an example of statistics. - ✔✔ correct answer False
A store asks shoppers for their zip code to identify market areas. Zip codes are an example of ratio
data. - ✔✔ correct answer False
In a company, the standard deviation of the ages of female employees is six years and the standard
deviation of the ages of male employees is ten years. These statistics indicate that the dispersion of
age is greater for females than for males. - ✔✔ correct answer False
The final rankings of the top 20 NCAA college basketball teams are an example of which level of
measurement? - ✔✔ correct answer Ordinal
According to Chebyshev's Theorem, 75% percent of the observations lie within plus and minus 2.00
average mean deviations. - ✔✔ correct answer False
The order that runners finish in a race would be an example of continuous data. - ✔✔ correct answer
False
For an ordered data set with an even number of ungrouped values, half of the values will be less
than the median. - ✔✔ correct answer True
What level of measurement is the price of an admission ticket to a movie theater? - ✔✔ correct
answer Ratio
If a variable is measured at the interval or ratio level, all the values are included when computing the
mean. - ✔✔ correct answer True
What is the relationship among the mean, median and mode in a symmetric distribution? - ✔✔
correct answer They are all equal
For any data set, which measures of central location have only one value? - ✔✔ correct answer
Mean and median
For any data set, Chebyshev's Theorem estimates the proportion of observations that occurs within k
standard deviations of the mean, where k is greater than 1.0. - ✔✔ correct answer True
A listing of 100 family annual incomes is an example of statistics. - ✔✔ correct answer False
A store asks shoppers for their zip code to identify market areas. Zip codes are an example of ratio
data. - ✔✔ correct answer False
In a company, the standard deviation of the ages of female employees is six years and the standard
deviation of the ages of male employees is ten years. These statistics indicate that the dispersion of
age is greater for females than for males. - ✔✔ correct answer False
The final rankings of the top 20 NCAA college basketball teams are an example of which level of
measurement? - ✔✔ correct answer Ordinal
