m 1. Here is a table of the percentage returns on a sample of 40 mutual...
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m 1. Here is a table of the percentage returns on a sample of 40 mutual funds for the year 2010: 19.0 -4.3 -1.0 0.9 5.5 11.3 14.1 16.4 -3.6 -0.1 2.6 6.7 11.6 14.3 16.7 19.6 -2.5 0.0 4.0 8.9 12.0 14.4 17.0 22.8 -2.5 0.2 5.1 8.9 13.2 14.9 18.3 23.2 -1.6 0.9 5.3 10.5 14.0 15.7 18.3 24.7 (a) (1 mark) Give the median return value. (b) (4 marks) Give the quartiles Q1, and Q3, and calculate the IQR. (c) (1 mark) Give the range of this data. (d) (2 marks) Calculate the bin width needed to group the data into 5 bins. (e) (8 marks) Grouping the data into 5 bins, give: BINS TOTALS: (i) the mean X - f,m, N f, (m,-X) (ii) the variance s and N-1 (iii) the standard deviation (s). Tally f m fm X-m, (X-m) | f(X-m) m 1. Here is a table of the percentage returns on a sample of 40 mutual funds for the year 2010: 19.0 -4.3 -1.0 0.9 5.5 11.3 14.1 16.4 -3.6 -0.1 2.6 6.7 11.6 14.3 16.7 19.6 -2.5 0.0 4.0 8.9 12.0 14.4 17.0 22.8 -2.5 0.2 5.1 8.9 13.2 14.9 18.3 23.2 -1.6 0.9 5.3 10.5 14.0 15.7 18.3 24.7 (a) (1 mark) Give the median return value. (b) (4 marks) Give the quartiles Q1, and Q3, and calculate the IQR. (c) (1 mark) Give the range of this data. (d) (2 marks) Calculate the bin width needed to group the data into 5 bins. (e) (8 marks) Grouping the data into 5 bins, give: BINS TOTALS: (i) the mean X - f,m, N f, (m,-X) (ii) the variance s and N-1 (iii) the standard deviation (s). Tally f m fm X-m, (X-m) | f(X-m)
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