Measures of the Spread of the Data · Example 1
Use the following data (first exam scores) from Professor Dean's spring pre-calculus class:
33; 42; 49; 49; 53; 55; 55; 61; 63; 67; 68; 68; 69; 69; 72; 73; 74; 78; 80; 83; 88; 88; 88; 90; 92; 94; 94; 94; 94; 96; 100
(a) Create a chart containing the data, frequencies, relative frequencies, and cumulative relative frequencies to three decimal places.
(b) Calculate the following to one decimal place:
(a) The sample mean
(b) The sample standard deviation
(c) The median
(d) The first quartile
(e) The third quartile
(f) IQR
OpenStax, Introductory Business Statistics 2e · §2.7 Measures of the Spread of the Data · Example 1
No hints for this one.
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