Question: Multiple Choice QUESTION 15 When looking at the shape of a distribution, which of the following best describes negative skewness? the distribution is evenly split

Multiple Choice

QUESTION 15 When looking at the shape of a distribution, which of the following best describes negative skewness? the distribution is evenly split into two identical halves the distribution has an elongated tail in the righthand direction the distribution has an elongated tail in the left-hand direction the distribution has a very steep single peak the distribution has two separate peaks with a valley in between QUESTION 16 Which of the following graphical presentations for depicting quantitative data has no natural separation between rectangles of adjacent classes: histogram pie chart bar graph box-and-whisker plot scatter diagram QUESTION 17 The interquartile range is used as a measure of variability to overcome what difculty of the range? the sum of the range variances is zero the range is difficult to compute the range is influenced too much by extreme values the range is negative none of the above

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