Q6) The weights of bags of popcorn are normally distributed with mean of 200 g and 60% of all bags weighing between 190 g and 2009.
A) Write down the median of the weight of the bags of popcorn. its 200g
I NEED HELP WITH THE FOLLOWING PART
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b) Find the standard deviation of the weights of the bags of popcorn
show ur working
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thanks!
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I've attached the question paper, its from January 2008 S1 edexcel