Monday, October 1, 2012

M&M Activity

Last week we participated in an M&M activity. It was super easy and fun! The teacher gave us all a mini pack of M&Ms. Everyone was to separate their M&Ms by color and then count how many of each color. Once everyone was done, the teacher wrote down the number each student had of each color on the board. We then took that data and graphed it. The following are graphs from our M&M activity. 

Dot Plot:

Pictograph:

Histograph:
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Friday, September 28, 2012

Vocabulary

These are the vocabulary words that we have learned for Data Analysis and Statistics.

  • Data Analysis- informal approach to statistics
  • Statistics- making sense of the data
  • Categorical Data- represents characteristics in groups
  • Numerical Data- data w/ numbers
  • Continuous Data- no breaks in between, overtime
  • Outlier- a value that is widely separated from the rest of the group
  • Cluster-data in groups
  • Gap- a break or opening in the data
  • Measures of Central Tendency: they describe where the data is centered
  • Mean- balance point
  • Median- the middle of the data
  • Mode- the number that occurs most
  • Measures of Variation: describes how the data is spread out
  • Range- the area of variation between the upper and lower limits
  • Variance- average of the mean
  • Standard Deviation- mean of the minus
  • Interquartile Range- the middle 50%
  • Trend Line- follows a trend in a graph
  • Normal Curve- a small bell-shaped curve that shows frequency values

And it starts here...


We have been learning about Data Analysis and Statistics, which in English means:
  • Computing Means 
  • Understanding the Mean as a Balance Point
  • Computing Medians
  • Finding Modes
  • Choosing the Most Appropriate Average
  • Measures of Spread
  • Box Plots
  • Outliers 
  • Comparing Sets of Data 
  • Variations: Mean Absolute Deviation, Variance, and Standard Deviation 
  • Mean Absolute Variation 
  • Normal Distributions 
  • Applications of the Normal Curve 
  • Percentiles
These have been really fun to work with. I like that we can pick any topic and collect data from it. For example, I can ask all of  my students how many siblings each student has. I would have each student write the number on a little piece of paper, then I'd walk around and collect the little piece of paper in a bowl. I would organize all of the numbers either on the board or ladybug camera so that the students could see what was going. Then from the data we collect, we can find the mean, median, and mode. At the end, we would graph this data on a histogram so that the students may analyze the data.