2015-02-20 00:35:01 -05:00
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def mean(nums)
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2018-06-22 20:57:24 +00:00
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nums.sum(0.0) / nums.size
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2015-02-20 00:35:01 -05:00
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end
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2013-04-10 14:58:50 -07:00
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nums = [3, 1, 4, 1, 5, 9]
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2015-02-20 00:35:01 -05:00
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nums.size.downto(0) do |i|
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ary = nums[0,i]
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puts "array size #{ary.size} : #{mean(ary)}"
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end
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