1) The difference between the highest and lowest values  a) Confidence level  b) Median c) Mean d) Range 2) The average or the most common value in a collection of numbers. a) Mode b) Patterns c) Range d) Mean 3) The middle value of a set of numbers. a) Trend b) Regression c) Tolerance parameters d) Median 4) The most frequent number, the number that occurs the highest number of times a) Mode b) Tolerance parameters c) Range d) Error rates  5) A measure of the amount of variation or dispersion of a set of values. a) Tolerance parameters b) Standard deviation c) Range d) Confidence level  6) Upper and lower limits which we expect data to fall within.  a) Range b) Standard deviation c) Mode d) Tolerance parameters 7) Frequency with which a certain testing procedure will lead to a error a) Confidence level  b) Median c) Error rates  d) Standard deviation 8) Percentage of times you expect to get close to the same estimate if you run your experiment again. a) Mode b) Patterns c) Confidence level  d) Range 9) Used to describe if the data is showing an upward or downward movement. a) Trend b) Patterns c) Mode d) Range 10) Data that repeats in a recognisable/predictable way. a) Confidence level  b) Regression c) Tolerance parameters d) Patterns

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