Thasan+Assignment+3

Date of submission: December 6th 2010 Due Date: December 6th 2010 Date Assigned: November 8th 2010 Math Block 6E Wiki Assignment 3 Topic: Data About Us Making Graphs out of Technology Pages 69-70


 * 1. Use the lengths if the alligators in this table below**.

//I made a table showing all the data of the length and the weight because making two would (waste my time) just be copying the Gator Numbers again and I thought it would show all the data to make it all in one graph//. Number || Length (inches) || Weight (pounds ||
 * Gator
 * 1 || 74 || 54 ||
 * 2 || 94 || 110 ||
 * 3 || 85 || 84 ||
 * 4 || 61 || 44 ||
 * 5 || 128 || 366 ||
 * 6 || 72 || 61 ||
 * 7 || 89 || 84 ||
 * 8 || 90 || 106 ||
 * 9 || 63 || 33 ||
 * 10 || 82 || 80 ||
 * 11 || 114 || 197 ||
 * 12 || 69 || 36 ||
 * 13 || 86 || 83 ||
 * 14 || 88 || 70 ||
 * 15 || 58 || 28 ||
 * 16 || 90 || 102 ||
 * 17 || 94 || 130 ||
 * 18 || 68 || 39 ||
 * 19 || 78 || 57 ||
 * 20 || 86 || 80 ||
 * 21 || 72 || 38 ||
 * 22 || 74 || 51 ||
 * 23 || 147 || 640 ||
 * 24 || 76 || 42 ||
 * 25 || 86 || 90 ||

a. Create a graph of the alligators length data and write a sentence describing it.

For this, I chose a bar graph. The graph shows the lengths of the alligators shown on the table above the graph. The range of the alligator lengths are from 58- 147 inches. The median of the data is 85 inches. The mode of the data is 86 inches, and the mean of the data is 84.96 inches. Most of the data are around the same place. Three are way above others though.

b. The mean length is 84.96 inches, and the median length is 85 inches. c. The range of the lengths are from 58 to 147 inches.


 * 2. Use the weights of the alligators in the table.**

a. Create a graph of the alligators weight data and make a sentence describing it. I used a bar graph to display the data again. Again, most of the data is clumped in the same place, except for 5, and 23. They are way above all the others. b. Mean: 108.2 Median: 80 c. Range: 28-640


 * 3. Now use the lengths and the weights of the alligators in the data.**

a. Create a coordinate graph of this data.

b. What relationship do you notice between.......

i. 61 and 63 inches? They weigh about the same. ii. 82,85,86 inches? They also weigh about the same. iii. 90,94,96, inches? They also weigh about the same.

c. Predict the weight of an alligator that is......

i.70 inches long? 70 pounds. ii.100 inches long? 180 pounds. iii.130 inches long? 370 pounds.

d. I do think that it is possible to make a good estimate of the weight of an alligator, if you know its height. I my coordinate graph, the data was not all scattered, but went in a diagonal way. So you can make a good guess. The median weight and the median length were really close.


 * Explaining Your Reasoning-**


 * 1**.The mean and median help you determine a piece of data that you can refer to when comparing one piece of data to another.


 * 2**.The range allows you to know what is the amounts of the data you are working with.

a.line plots? Data for a survey of number of people in household b.stem and leaf plots? Data of number of jumps in a jump rope contest between two classes c.coordinate graphs? Comparing arm span and height of several people.
 * 3.What kind of numerical data is best for.....**


 * 4**.To say something is related to another, is saying that there is a **pattern** between the data. For example, you can say that the farther you live, the longer it takes for you to get to school, from home. The data is related to each other because the farther you live is **affecting** how long it takes you to get to school, and it is affecting it the **same way** every time.