Tooling U Statistics 231 Test Questions with Correct Answers

Tooling U Statistics 231 Test Questions with Correct Answers Which of the following is a source of natural variation? - Answer-Tool wear On a graph showing standard deviations, which of the following values will have the highest probability of measuring within one standard deviation of a mean that measures .202? - Answer-.129 Which of the following describes the range of a numerical set? Range is the: - Answer- Difference between the lowest and highest values. Which term describes the use of small numbers of parts to examine a whole group? - Answer-Random sampling How is the mean of a set of numbers calculated? The mean of a number set is calculated by: - Answer-Dividing the sum of sample values by the number of the values in a sample. What is represented by a histogram? Histograms represent the: - Answer-Frequency of an event over time. Which statement concerning probability is true? - Answer-Probability is expressed as a ratio, fraction, or percentage. What is represented by the standard deviation of a numerical set? The standard deviation of a numerical set represents its: - Answer-Degree of variation What is the median of a set of numbers? The median is the: - Answer-Number in the middle of a set of ordered numbers. Which of the following activities involves statistics? - Answer-Tracking size differences in a batch of parts. Which statement best describes the numbering of the standard deviations? The six divisions of standard deviation on the bell-shaped curve are numbered: - Answer--3 to 3, with zero in the center. Which of the following would be represented by a very wide, flat, bell-shaped curve? - Answer-Variations having a wide range of values.