The following data are the average monthly after tax salary in 2020 for 162 countries.

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a.?Construct a frequency distribution for the data using five class ? ? intervals.

b.?Construct a frequency distribution for the data using 10 class ? ? intervals.

c.?Examine the results of (a) and (b) and comment on the usefulness of the frequency distributions in summarising these data.

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2693.05 6301.73 1250.00 713.11 502.19 350.00 4479.80 2650.03 1226.79 712.50 710.22 701.28 500.00 350.00 4330.98 2564.89 1081.73 492.13 346.48 4323.25 2495.86 1080.44 491.37 340.22 4250.00 686.16 2495.43 1020.48 487.08 334.60 4215.43 2470.36 1018.58 667.58 481.21 330.73 4038.08 2457.33 1017.82 650.00 474.66 312.89 3990.69 3780.69 644.09 2236.71 979.60 466.74 304.25 2228.21 953.44 636.99 464.89 299.37 949.50 3313.01 2176.15 633.02 460.00 281.62 3269.62 2174.36 2117.76 947.95 632.67 452.11 281.33 3258.85 937.16 627.30 447.61 274.10 267.21 3200.00 2087.14 914.97 614.24 434.19 3181.11 1911.78 905.62 592.50 425.61 264.33 3081.34 1874.63 869.71 589.82 421.11 415.59 251.75 3025.00 1786.07 862.60 572.85 249.00 2991.21 808.02 244.09 1704.12 570.79 400.00 564.76 2960.54 1703.52 1635.15 786.93 393.03 243.94 779.04 2937.58 564.23 386.85 239.31 2924.10 1625.00 770.21 757.92 229.00 562.45 379.79 2851.85 1618.85 533.33 365.00 213.58 757.22 2833.33 1562.20 528.84 360.72 209.33 1441.00 200.00 2782.43 756.06 524.84 359.29 2773.50 1400.01 731.68 522.86 357.71 191.18 2761.99 1337.74 731.14 507.08 352.62 166.49 2759.38 1307.43 729.94 506.76 351.83 39.37 2731.12 1275.66 719.49 502.78 351.22 25.05