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IB Diploma Statistics — practice questions

22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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A teacher splits the value 23 for a stemplot. The stem is two and the leaf is:One value in a data set sits far away from all the others. That value is called an:A researcher has 400 measurements to display. The recommended graph for a set that large is a:For clarity a histogram usually holds a number of bars between:A histogram is drawn from boxes that touch each other, which are described as:Values that divide an ordered data set into four equal parts are called:Values that divide a data set into a hundred equal parts are called:Before any quartile can be found, the data must first be:A student scores at the 90th percentile. This means the share of scores at or below hers is:A value that separates ordered data into two halves is the:The middle value of the lower half of an ordered data set is the:A data set has Q3 of 649,000 and Q1 of 308,750. Its interquartile range is:The interquartile range describes the spread of the middle share of the data equal to:A value is suspected to be an outlier if it lies beyond the quartiles by more than the IQR times:The median of a data set is the same as the percentile numbered:The third quartile of a data set is the same as the percentile numbered:A box plot is built from the minimum, maximum, median and the two:On a box plot, the two ends of the rectangular box are marked by:Fifty weights are added together and the total divided by fifty. The result is the:The value that appears most often in a data set is the:A histogram is pulled out towards the low values, so the distribution is described as:A number measuring how far the data are spread from the mean is the standard: