Which measure of central tendency works for nominal variables? |
Mode |

Which measure of central tendency is most appropriate for skewed distributions? |
Median |

When a histogram or polygon chart for a quantitative variable has two distinct peaks, then the distribution is referred to as _____. |
bimodal |

What is the mode for the following data set? 1 2 2 2 2 2 3 3 3 3 4 4 4 5 5 5 5 6 6 7 7+ |
2 |

What is the median for the following data set? 1 2 2 2 2 2 3 3 3 3 4 4 4 5 5 5 5 6 6 7 7+ -7+ |
4 |

The three most common measures of central tendency are: |
mean, median, mode |

What is the minimum level of measurement needed to calculate the mode? |
nominal |

What is the median for these data? 5, 1, 1, 3, 2 -cannot be calculated |
2 |

Which of these measures is LEAST affected by outliers? |
median |

Which measure of central tendency is LEAST efficient? |
mode |

Which of the following is NOT a measure of central tendency? |
standard deviation |

What is the minimum level of measurement needed to calculate the median? |
ordinal |

What is the mean for these data? 3, 1, 2, 5, 3, 4 – 6 |
3 |

In a negatively skewed distribution, which measure will generally have the highest value? |
mode |

Which measure of central tendency is MOST influenced by outliers? |
mean |

In a positively skewed distribution, which measure will generally have the highest value? |
mean |

Question 2 |
interval |

Which measure of central tendency is MOST affected by outliers? |
mean |

What is the mean for these data? 3, 1, 2, 5+, 2, 4 – 3 |
cannot be calculated |

What is the median for these data? 3, 1, 2, 5+, 2, 4 – cannot be calculated |
2.5 |

Which of these measures of central tendency works for nominal variables? |
Neither the mean nor the median works for nominal variables. |

When a histogram for a quantitative variable has only one distinct peak, then the distribution is referred to as… |
unimodal |

What is the mode for the following data set? 1 2 2 2 2 2 3 3 3 3 4 4 4 5 5 5 5 6 6 7 7+ – 3 |
2 |

For which levels of measurement can you calculate the mode? |
Both ordinal and interval |

Which of these measures is MOST affected by outliers? |
The mean |

Which of the following measures of central tendency can be used with data on the ratio level of measurement? |
The mean or the mode |

What is the mean for these data? 4, 2, 3, 6, 4, 5 – 4.5 |
4 |

Which measure of central tendency is always influenced by outliers? |
The mean |

What is the highest level of measurement? |
Ratio |

What is the mode for these data? 3, 1, 2, 5+, 2, 4 – 2.5 |
2 |

# Statistics CH 3

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