Hchoi+Wiki+Assignment+3

Haeun Choi Date Of submission:Nov 8,2010 Due Date:Dec 6,2010 Date Assigned:Nov 8,2010 Math Block 6G Wiki Assignment 3 Making Graphs using Technology: Data About Us Topic:pg 69-70 "Looking Back and Looking Ahead"

=Problem #1:look at the sample below which shows length and weight of alligators.=

a.make a graph that shows the length of alligator in the sample and write a sentence that describe the graph you made.



this graph shows most of alligators have length of 80s.

b.what is the median and mean of this alligator's length? mean:84.96 median:85.0

c.what is the range of this alligator's length? range:58 to 147

=Problem #2: look at the weight of alligators that shows in the sample.=

a. make a graph that shows 25alligator's weight in the sample and write one sentence that describe the graph. b.what are the median and mean of weights? median:80 mean:108.2 c.what is the range of alligator's weight? its 28 to 640.

=Problem #3: look at the relationship between the length and weight of these alligators.=

a.make a coordinate graph that shows length and weight of alligators.

b. what do you notice between weight and length of alligators that are i. 61 and 63 long? they have close amount of length but huge amount between these alligator's weight. ii.82,85 and 86 long? they all have little amount between weight and length. iii. 90,94 nad 114? they all have weight that is more than 100pounds.

c. predict the weight for alligators that is i. 70 long? 90pounds ii.100 long? 117pounds iii. 130 long? 155pounds

d. based on this data, do you think it is possible to predict the weight of alligator if you know the length of that alligator? no because the alligator could be fat or thin.

1. how can mean and median describe that data? the mean tell that every thing can be same number as mean and median describe that the data's middle number is median number.

2.how can range describe that data? the range tell the number that start and end.

3.which graph show the best numerical data? a. line plot? b. stem and leaf plot? c.coordinate graph? i think B is the best graph.

4.what does the mean to say that a person's armspan,time it takes to travel to school,and weight of alligator related to his of her height, distance traveled, length of alligator? these have all different mean because they have all different data.