Numerical Measures & Data Presentation Flashcards
(15 cards)
1
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What does sigma x mean and sigma x^2
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Sigma x = sum of
The squared is used in the variance equation
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12
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Candidates with the fastest 5% of times for the task are given interviews. Estimate the time taken by a job applicant, below which they much be given an interview
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13
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Part g explained :
The standard deviation is a measure of the spread of the mean
The answer you calculated in part d) is one standard deviation
The boundaries of the standard deviation are 22.5 - 12.1 = 10.4 & 22.5 + 12.1 = 34.6
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