JLomax+Wiki+Ass+3

Jalen Lomax Date Assigned: November 8th, 2010 Date submitted: November 18th, 2010 Due Date: December 6th, 2010 Wiki Assignment 3 pages 69-70 Math 6E: Data About Us

1.A Make a graph of the lengths of the 25 alligators and write a sentence describing the distribution of the lengths shown in the graph.

1.B What are the mean and and median lengths. For the median you have to list all the numbers from largest to smallest then you x out the largest then x out the smallest till you end up with one or two numbers. If there are two numbers left then you find the number in the middle. 58, 61, 63, 68, 69, 72, 72, 74, 74, 77, 78, [82, 85], 86, 86, 88, 89, 90, 90, 94, 94, 114, 128, 147 The Median is in between 82 and 85 so that means that the median is 83.5. To find the mean you have to add all the numbers together and then divide the total by the number of separate pieces of data. So 58 + 61 + 63 + 68 + 69 + 72 + 72 + 74 + 74 + 77 + 78 + 82 + 85 + 86 + 88 + 89 + 90 + 90 + 94 + 94 + 114 + 128 + 147 = 1,200 / 25 = 84

1.C What is the range of the alligators lengths.To find the range of any data you just take the smallest and the biggest numbers and that is you range. So the range for this data is 58 - 147.

2.A Make a graph of the weights of the 25 alligators and write a sentence describing the distribution of weights shown in the graph.



2.B What are the mean and median weight.F or the median you have to list all the numbers from largest to smallest then you x out the largest then x out the smallest till you end up with one or two numbers. If there are two numbers left then you find the number in the middle. 28, 33, 36, 38, 39, 42, 44, 51, 54, 57, 61, [70], 80, 80, 83, 84, 90, 102, 106, 110, 130, 366. So 70 is the median.

To find the mean you have to add all the numbers together and then divide the total by the number of separate pieces of data. 28 + 33 + 36 + 38 + 39 + 42+ 44 + 51 + 54 + 57 + 61 + 70 + 80 + 80 + 83 + 84 + 90 + 102 + 106 + 110 + 130 + 366 = 1784 / 25 =71.36

2.C What is the range of the weights. To find the range of any data you just take the smallest and the biggest numbers and that is you range. The range is 28-366
3.A Make a coordinate graph of the length and height data

3.B What relationship do you notice between length and weight of the alligators i because their range of weight is between 30-40 and they both have 2 of the same number in that number ii because they're weight and height range is between 80-90 iii because 94 and 90 are 4 apart and 94 and114 are 20 away 4 goes into 20.

3.C What weight would you predict for an alligator that is 70 inches maybe 45 pounds 100 inches maybe 78 pounds 130 inches maybe 100 pounds

3.D Do you believe that it is possible to make good estimations when studying height and weight data. I think that it is perfectly possible to make very good estimations by studying the lengths and weights.

4. It is the dependent and independent variable that is how they are related