Yjung+Assignment+3

=**Yoolim Jung**= =**Assignment Date: November 8th, 2010**= =**Due Date: December 6th, 2010**= =**Math Block 6E**= =**Wiki assignment 3 Data About Us**= =**Page 69~70**=


 * __UNIT REFLECTIONS__**

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


 * Answer: There are lots of alligators with long lengths.**


 * __B, What are the mean and median lengths?__**

Answer: The median is 85 The mean is 84.96


 * __C, What is the range of the lengths?__**

Answer: 58 to 147.


 * __# 2 Consider the weights of alligators in the sample.__**


 * __A, make a graph of the weights and the 25 alligator and write a sentence describing the distribution of weights shown in the graph__**


 * ~ Gator 's Weight ||

The graph tell me what the alligators weights are.
 * 1 || 54 ||
 * 2 || 110 ||
 * 3 || 84 ||
 * 4 || 44 ||
 * 5 || 366 ||
 * 6 || 61 ||
 * 7 || 84 ||
 * 8 || 106 ||
 * 9 || 33 ||
 * 10 || 80 ||
 * 11 || 197 ||
 * 12 || 36 ||
 * 13 || 83 ||
 * 14 || 70 ||
 * 15 || 28 ||
 * 16 || 102 ||
 * 17 || 130 ||
 * 18 || 39 ||
 * 19 || 57 ||
 * 20 || 80 ||
 * 21 || 38 ||
 * 22 || 51 ||
 * 23 || 640 ||
 * 24 || 42 ||
 * 25 || 90 ||


 * __B, What are the Mean and Median weights?__**

Answer: The mean is 108.2 and the median is 80.


 * __C, What is the range of the weights?__**

Answer: The range is from 28 to 640


 * __#3 Explore the relationship between the length and weight of Florida alligators.__**


 * __A, Make a cordinate graph of the (length, weight) data.__**





I, 61 and 63 inches long? I can see this alligator is kind of small. II, 82, 85 and 86 inches long? I can see this alligator is kind of big
 * __B, What relationship do you notice between length and weight of alligators that are__**

III, 90, 94, and 114 inches long? HUGE!

===**__C. What weight would you predict for an alligator that is__** ===

i, 70 inches long? i think about 50 KG ii,100 inches long? 80 KG iii,130 inches long? 100KG


 * __Explaining Your Reasoning__**


 * __1 HOw do the mean and the median help in describing the numbers in a data set?__**

The median helps by knowing the middle of the data and the mean helps by knowing the average of the data.

__**2HOw does the range help in describing the numbers in a data set**__

THe range helps by knowing from the smallest to biggest.


 * __3 What kinds of numerical data are best displayed with__**

A. Line plots? B. Stem and Leaf plots? C. Coordinate graphs?

i think B because sometimes the stem and leaf plots help by knowing the numbers.

4. **What does it mean to say when something is related to something else?**

**it means to be alike**