Posted: July 22nd, 2024

Philadelphia -STAT 311 -To identify the point in a distribution

QUESTION 1To identify the point in a distribution at which 50% of scores fall above and 50% fall below a given score, which measure of central tendency would you report?a.averageb.meanc.moded.medianQUESTION 2Which of the following requires you to multiply a set of scores by the frequency of their occurrence, add the total of these products, and divide by the total number of scores?a.geometric meanb.arithmetic meanc.weighted meand.harmonic meanQUESTION 3Which measure of central tendency is greatly influenced by extreme data values?a.medianb.all of the abovec.moded.meanQUESTION 4Which measure of central tendency is best for describing qualitative data?a.the weighted meanb.meanc.mediand.mode2 points Save AnswerQUESTION 5Variability is a measure of how much each score in a group of scores differs from the what?a.modeb.medianc.meand.variability2 points Save AnswerQUESTION 6If a distribution is “significantly distorted” what is this called?a.variabilityb.skewc.percentiled.outliersQUESTION 7When calculating the standard deviation, what must be done in order to obtain an unbiased estimate of the population?a.add 1 to nb.subtract 1 from Xc.subtract 1 from Nd.subtract 1 from nQUESTION 8Which of the following sets of scores has the most variability?a.7,7,8,8,10,11b.7,10,11,15,19c.6,6,7,7,7,7,7d.QUESTION 9Which of the following is the correct function for calculating an unbiased estimate of the variance in the population?a.STDEV(A1:A10)b.STDEV(A1+A2+A3)/3c.VAR(A1:A12)d.AVERAGE(A1:A15)2 points Save AnswerQUESTION 10If you intend to use a sample as an estimate of a population parameter, which standard deviation is the best to calculate?a.mean deviationb.squared deviationc.unbiasedd.biased

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