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Calculating range & variance,Histogram,binomial distribution

45, 52, 71, 72, 59, 60, 63, 64, 64, 72
72, 64, 65, 69, 69, 70, 70, 72, 72, 72
73, 74, 65, 68, 75, 76, 78, 78, 79, 79
80, 84, 84, 86, 87, 89, 48, 50, 89, 68
69, 90, 94, 95, 54, 55, 58, 59, 95, 100

1. Calculate the range and variance of the data

2. Create a histogram of the data.

3. Based on your answers to the questions 1 & 2 on this quiz, explain whether you think the data is normally distributed or not.

4. Find the probability of guessing no more than 10 questions correctly on a 20-question multiple choice test. Each question has 4 choices. (Hint: binomial distribution).

Remember that your choice of technology (or whether you use technology at all) is up to you. Having said that, though, you must present me with a reasonable amount of work or at least explanations of what you did on the technology. Do not simply write answers.

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Calculating range and variance, creating a Histogram, binomial distribution

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