The closeness (or otherwise) of the cloud of data points to the line suggests what concept?Question 26Answera.variationb.dispersionc.correlationd.biasClear my choiceQuestion 27Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is the ratio of the standard deviation to the mean referred to as?Question 27Answera.Normal distributionb.Mean squared errorc.Coefficient of variationd.VarianceClear my choiceQuestion 28Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is t given that the first sample size is 30, the mean is 10, and the standard deviation is 4, whereas the second sample size is 15, the mean is 6, and the standard deviation is 5?Question 28Answera.2.9b.2.7c.1.48d.1.38Clear my choiceQuestion 29Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat problem arises when comparing more than two means, and thus repeatedly using statistical tests?Question 29Answera.an increase in statistical biasb.a decrease in statistical significancec.an increase in Type I errord.an increase in Type II errorClear my choiceQuestion 30Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow would a researcher find a relative frequency?Question 30Answera.divide the total number of data points in the sample by each frequencyb.divide each frequency by the total number of data points in the samplec.add all the previous relative frequencies to the relative frequency for the current rowd.write each frequency as a fraction, percent, or decimal