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## Statistics

The following data represent load for sample of 60 mutual funds (in cents).

 41 76 10 53 36 86 42 81 104 77 44 25 68 90 94 90 125 25 32 13 87 121 69 60 72 106 77 25 39 80 102 68 46 55 41 87 60 74 71 97 89 47 82 28 104 103 40 13 77 72 98 74 28 82 107 110 44 10 72 27

Convert 60 sample observations above to grouped data by means of frequency distribution. Let the first class be 10 < 30 and keep the class width at 20. Disregard the 2k Rule for finding the number of classes. From the frequency distribution, evaluate the sample mean and variance, and standard deviation using the grouped data formulas. Make the histogram, frequency polygon, and Ogive. Remember to find out the less than cumulative frequency distribution before you can produce the Ogive. Then employ the ogive to estimate the median and first and third quartiles. Also use it to answer the following problem: What percent of 60 mutual fund loads are less than 75.

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M916962

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