Egourgonwong+Assignment+3

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==When I look at the graph that I made I could see that there are 2 outliers and 1 major one. When I looked at the gator number it had a pattern like stairs. Also the length of the gator mostly increase and decreased and it continued that pattern.==

74+94+85+61+128+72+89+990+63+82+114+69+86+88+58+90+94+68+78+86+72+74+147+76+86=2034
==Now that I know the total, I have to figure out how many gators there are. There are 25 gators. To find the mean you take the sum of all the gators length and divide it by 25 the number of gators there are. 2034 divided by 25= 81.36. To find the median you have to take all of the gators length and list them from smallest to largest. After you accomplish that task you find the length that is in the middle. 58,61,63,68,69,72,72,74,74,76,78__//,82,85//__**,**86,86,88,89,90,90,94,94,114,128,147 The median is 83.5. If you end up with 2 numbers as your median, add them up, and divide by 2.==

== I noticed that there was 2 outliers. Most of the data are small numbers and there are about 6 different bars who were long.==

2.B What are the mean and median weights?
==I added all the gators weight up and the sum was 2,705.54+110+84+44+366+61+84+106+33+80+194+36+83+70+28+102+130+39+57+80+38+51+640+42+90=2705Now that I know the total, I have to figure out how many gators there are. There are 25 gators. To find the mean you take the sum of all the gators weight and divide it by 25 the number of gators there are. 2,705 divided by 25= 108.2.To find the median you have to take all of the gators weight and list them from smallest to largest. After you accomplish that task you find the weight that is in the middle. 28,33,36,38,39,42,44,51,54,57,61,70,80,80,83,84,84,90,102,106,110,130,366 The median is 70. ==

To find the range you look at the smallest and largest number in your data. The range is 28-366.
**3.A Make a coordinate graph of the (length and weight) data.**



3.B What relationships do you notice between length and weight of the alligators that are:
**I. 61and 63 inches long? I noticed that the 61 gator length weight was 44 pounds and the 63 length gator weight was 33. The gator who was longer (length) weight less than the gator who was shorter (length).** **II. 82,85,86 inches long? I noticed that all of the gators length and weight are proportional. That means that the longer the alligator is the more it weights.** **III. 90,94,114 inches long? I noticed that the weight and length are also proportional. Also,I notice that there is a big jump from 110 pounds to 197 pounds for the gators weight.**

3.C What weight would you predict for an alligator that is:
**I. 70 inches long? I predict that the 70 inch gator will weigh aproximently 37 pounds. I got the answer from my graph because a gator that is 69 inches and weight 36 pounds, verse a gator that is 72 inches and weight 38 pounds. So I 37 pounds that is in the middle of 36 and 38.** **II. 100 inches long? I think that the 100 inch gator will be close to 140 pounds. I used my data to state that a gator who is 94 inches weight 110 pounds,verse a gator who is 114 inches and 197 pounds. These gators were the closest pairs of numbers near 100.** **III. 130 inches long? I looked at the coordinate graph I made and saw that a 120 inch gator weight 366 pounds, verse a 147 inch gator weight 640. This is very hard to get the answer even if I use the graph. I predict that a 130 inch gator will weigh about 250 pounds.**

**3.D** **Based on your study of the alligator length ad weight data, do you believe that it is posisble to make a good estimate for the weight of an alligator if you know it's length?** **I think that you __//could not//__ make a good estimate for the weight of a gator if you know the length because all gators are different for their size and length. What I mean by that is in the chart above showed that two gators who's length is the same(72 inch) but their weight were different. Gator 1 weight 61 pounds, and gator 2 weight 38. Based on that I strongly think that if you know the length of the gator you will not know the weight.**

Explaining Your Reasoning: When you describe a collection of data, you look for the shape of the distrobution of the data. You can often visualize data patterns using graphs.
==1. How do the mean and the median help in describing the numbers in a data set?The mean and median help you in describing numbers in a data set. The median is the number which is in the middle. So half of the other numbers are more than the median and the other half is less than the median. The mean helps describing the numbers by giving an estimate about the values about the other numbers. The mean is the average (if all the numbers were made equal that would be the mean).==

2. How does the range help in describing the numbers in a data set?
==The range help describing the numbers in a data set. We can find the smallest value in the graph and the highest value. Also we know all the other values in the graph are in/within the range. We know that the other numbers are less than the highest value or greater than the lowest value.==

B. Stem And Leaf Plots? Stem And Leaf Plots are mainly used when you have a-lot of data, of different values. For example the Travel Times To School in minutes for different students.
==C. Coordinate Graphs? Coordinate Graphs are used for plotting data that have 2 different kinds of information. For example if I was to graph the Length and Weight of the Gator I would use a coordinate graph because weight and length are 2 different kinds of data. Also the numbers change, and each gator have different data.==

==4. What does it mean to say that if a persons arm span is related to his or hers height, or that the time it takes ot travel to school is related to the distance traveled, or that the weight weight of an alligator is related to it's length?== ==It means there is a correlation between the two values. For example if a person's arm span is related to his or her height, it means there is a relation between the two numbers, if one number changes the other will change too. If one value increases the other value might increase or decrease.==