Q: What is the mean of 13 17 17 34 55 79 79?

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This is called the Fibonacci sequence. The last two numbers in the sequence are added together to produce the next. Therefore, following 8 and 13 are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144

34 is 61.82% of 55.

13 times ( 4 x 13= 52) Remainder 3

55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256

Yes it is. It goes 1 1 2 3 5 8 13 21 34 55 89

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55

This is called the Fibonacci sequence. The last two numbers in the sequence are added together to produce the next. Therefore, following 8 and 13 are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144

This is the Fibonacci sequence where each new number is the sum of the last two numbers. So the next numbers are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144

20-16, 55-10, 20-19, 37-24, 52-17, 30-13, 49-26, 27-17, 35-21, 31-24, 34-19,

49.30179172 is the standard deviation and 52 is the mean.

13 times ( 4 x 13= 52) Remainder 3

34 is 61.82% of 55.

55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256

Yes it is. It goes 1 1 2 3 5 8 13 21 34 55 89

34 as a percentage of 55 is: 34/55 times 100 = 61.81% repeating decimals of 0.81

21

The Babylonians used sexagesimal (base 60) numbers. Thus to convert them to standard numbers: 1. Add up the wedges in each place value to a number in the range 0-59; the usual way to write the numbers is separated by colons, eg 17 : 34 : 55 2. Each place value is 60 times the one to its right. Thus, the easiest way to proceed now is to start at the left hand end place value and a result of zero: 2.1 multiply the result so far by 60 2.2 add the current place value 2.3 if there is a place value to the right, move to it and repeat from step 2.1 2.4 the result is now the Babylonian number in decimal. eg having converted wedges into 17 : 34 : 55 result = 0 starting with left hand place value: result = 0 × 60 = 0 + 17 = 17 move to next place value right (34) result = 17 × 60 + 34 = 1054 move to next place value right (55) result = 1054 × 60 + 55 = 63295 no more place values to the right, so 17 : 34 : 55 in decimal is 63295. You may notice that 17:34:55 looks like 17 hours (5pm) 34 minutes 55 seconds - ie a time which is not surprising as we use Babylonian numbers to tell the time! And the decimal version (63295) is the number of seconds since midnight of the time 17:34:55.