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As you come in…. Pick 6 letters (A-J) and 6 numbers (between 1-10) generate a set of 5 coordinates you will measure in your quadrats . Why are you using a random coordinate generator then?. Now use your coordinates - Random sampling.

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## As you come in…

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**As you come in…**• Pick 6 letters (A-J) and 6 numbers (between 1-10) generate a set of 5 coordinates you will measure in your quadrats. Why are you using a random coordinate generator then?**Now use your coordinates- Random sampling**• Count the number of poppy’s at these coordinates in both locations. • Calculate a mean of the results • What was the range? (your highest and lowest result**Real difference in Standard deviation**I am looking for differences between number of poppies in two different fields**Standard Deviation**• To calculate standard deviation you MUST know the following equation:**Standard deviation**10.83 6 – 1 = 1.46 +/- (2.17) √ - 1**Is there real difference between your results?**• Draw a number line under your calculations So standard deviation is the range of values around the mean of a set of results and can be compared to see if there is real difference between sets of results (this is where results overlap).**Can you draw two graphs to represent your findings.**• We will look at these Later in the lesson. One will be a bar chart and one will be a line graph? Which set of data is discontinuous**How can we represent this on a graph….**• Can you write down whether your ear lobe’s are attached or not attatched • Can you also write down the length of your middle finger (cm) • Make a tally chart of these to sets of data for the whole class.**Back to your graphs…**Can you draw a bell curve of your results for the length’s of middle fingers. How would you draw a graph for you ear lobes? What would it look like?**Homework**• Questions 1 and 2 in booklets • Read pages 124-127 to consolidate knowledge (I also suggest you try the summary questions on page 127 to check your understanding)

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