Lbrodback+Assignment+3

Lisa Broedbaek

Topic: Looking Back and Looking Ahead
1a. __Making a graph and table of the lengths of the 25 alligators and tell about the distribution of lengths showing on the in the graph.__ The lengths go from 58 inches to around 150 inches. Many of the lengths are from around 60 inches to 94. Many of the alligators way aroung 80 inches to 89 inches.

1b. __The Mean and Median Lengths.__ The mean is 84.96 inches The median is 85.0 inches

1c. __Finding the range of the alligator lengths__ The range is from 58 inches -147 inches

2a. __Make a graph and table of the weights of all the 25 alligators and tell about the distribution of the weights shown on the graph.__ The weight is from 28 pounds to 640 pounds. There are 3 outliers: 197, 366 and 640 pounds. Many alligators have a weight of 30 to 90 pounds.

2b.__Mean and Median.__ The mean is 108.2 pounds The median is 80.0 pounds

2c. __Find the range of the weight of the alligators.__ The range is from 28 pounds - 640 pounds.

3a.__Make a coordinate graph showing the length and weight data of the alligators__

3b.__What relationships do you see between the lenght and weight of alligators that are...__

i. __61 and 63 inches long__? I can see that their length is about twice as much as their weight. Their weight has a lot of difference but their lengths dont have a lot of difference. Both the alligator weights are a multiple of 11.

ii. __82, 85, and 86 inches long?__ I can see that their length is almost the same as their weight, and the weight is only like 3-6 numbers less or bigger then the length number.

iii. __90,94, and 114 inches long?__ I can see that their weight for some of them have a bigger number than their length number, and others have their weight and length around the same numbers.

3c. __Weight predicting for an alligator that is...__

i. __70 inches long?__ I predict something that is around 38 pounds because one of the alligators is 72 inches long and 70 is close to 72 so i predict around 38 pounds.

ii.__100 inches long?__ I think that it weighs more than its length number because it is big number and the table show that many of the alligators that were long weighed more than the length of themselves.

iii. __130 inches long?__ I think that it ways more than its length number because on the table it shows a alligator that was 128 in length and it weighed 366 and 128 is close to 130 and so i think that it ways more than its length number.

3d. __Do you believe that you can make a good estimate for the weight if you know the length of an alligator?__ I do not think so because the length doesnt really tell you anything it just tells you what the weight might be because an alligators length could be 85 and it could weigh 84 so no i do not think you can make a good estimate guess like that.

__Explaining your reasoning.__

1. __How does the mean and median help tell you about the data in a number set?__ Median helps you because then you know which is the middle number and it does not get confusing because if you have a long number set it makes everything much easier to have the middle number then the questions you are asked to solve will not be as challenging. Mean helps because you have to add all the numbers up and divide by the amount of number values and many questions ask: What is the total amount of ? and you would have to find the amount but when finding the mean you have the total amount of and the mean. So actually the mean helps you in two different ways having the total amount of something and the mean.

2.__How does the range help you tell about the data in number set?__ The range helps you because then you know the lowest number and the greatest number and you have an idea of what the numbers are in the number set.

3.__What Kind of numerical data is best displayed when using...__ a. Line Plot- The best numerical data when using a line plot is probably: How old are you? b. Stem and Leaf Plot- The best numerical data when using a stem and leaf plot is probably: What year were you born? c. Coordinate graph- The best numerical data when using a coordinate graph is probably: What day and Month were you born?

4. __What does it mean to say when something is related to something else?__ To me it means that two things have some comparisons with each other. To me it also means that the 2 or more things are related to each other in some way.