question archive In a certain university, the ?nal percentage marks of 20 students on a particular degree programme were as follows: 47 52 53 65 49 49 30 51 46 48 59 63 44 44 73 62 61 71 59 38 (a) Prepare a stem—and—leaf diagram representing these data
In a certain university, the ?nal percentage marks of 20 students on a particular degree programme were as follows: 47 52 53 65 49 49 30 51 46 48 59 63 44 44 73 62 61 71 59 38 (a) Prepare a stem—and—leaf diagram representing these data
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In a certain university, the ?nal percentage marks of 20 students on a particular degree programme were as
follows: 47 52 53 65 49 49 30 51 46 48 59 63 44 44 73 62 61 71 59 38 (a) Prepare a stem—and—leaf diagram
representing these data. (b) Calculate the sample mean and variance of the data. Show your working.
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