# Unit 3 - Descriptive Statistics: Question Preview (ID: 29405)

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The average of a data set. The sum of the values divided by the number of values. |
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a) Mean | b) Median | c) Mode | d) Range | |

A distribution of data that is not symmetric with respect to its mean. |
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a) Mean | b) Median | c) Skewed Data Distribution | d) Range | |

The square root of the sum of the squared distances the values are from the mean divided by (n-1). (from a numerical sample data set of n-values) |
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a) Sample Standard Deviation | b) Mean | c) Relative Frequency | d) Histogram | |

Given a data set and linear equation used to model the data set, the graph of all ordered pairs determined as follows: The first entry of the ordered pair is the x-value of the data point, and the second entry is the residual of the data point. |
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a) Interval | b) Quartile | c) Residual Plot | d) x-axis | |

Given a data set and linear equation used to model the data set, the actual value minus the predicted value. (Actual-Predicted) |
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a) Residual | b) Mode | c) Inter Quartile Range | d) Skew | |

A value in a data set that is greater than Q3 by a distance of 1.5 times the Inter Quartile Range or a value that is less than Q1 by a distance of 1.5 times the Inter Quartile Range. |
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a) Median | b) Outlier | c) 2nd Quartile | d) Mean | |

The distance between the first quartile and the third quartile. The length of the interval that contains the middle 50% of data values. |
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a) Domain | b) Minimum | c) Maximum | d) Interquartile Range | |

A relationship between measures of two types of quantities so that one is statistically dependent on the other. |
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a) Interquartile Range | b) Association | c) Mean | d) Box Plot | |

Often denoted by r, a number between -1 and +1 that measures the strength and direction of a linear relationship between the two types of quantities. |
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a) Correlation Coefficient | b) Standard Deviation | c) Medium | d) Histogram | |

A graphic representation of a distribution by a rectangle, the ends of which mark the maximum and minimum values, and in which the median and first and third quartiles are marked by lines parallel to the ends. |
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a) Histogram | b) Box Plot | c) Pie Chart | d) Linear Regression | |

Found by arranging all the values from lowest to highest and picking the middle one. |
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a) Range | b) Mean | c) Mode | d) Median | |

The equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of y. |
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a) Linear Regression Equation | b) Residual | c) Variance | d) Correlation Coefficient | |

In a mathematical equation or relationship between two or more variables, any variable whose value determines that of others. |
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a) Solutions | b) Y-intercept | c) Dependent Variable | d) Independent Variable | |

Increasing or increased by successive additions. Growing. Mounting. |
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a) Decay | b) Cumulative | c) Product | d) Interval | |

A straight line drawn through the center of a group of data points plotted on a scatter plot |
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a) Correlation Coefficient | b) Exponential Growth | c) Line of Best Fit | d) Residual | |

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