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Normal Distribution Problems With Answers. This was first discovered by the famous German mathematician Gauss 1777-1855 and this is why the normal distribution is sometimes called the Gaussian distribution. According to Nielson Media Research people watch television an average of 698 hours per day. The mean μ and the standard deviation σ. As further explained below this statement appears to be of a much broader importance.
A 50 b 68 c 95 d 99 Answer. Reveal answer The Standard Normal Distribution Back in Section 34 we introduced the idea of a z-score. A 95 of all values are within 2 standard deviations from the mean. The proportion of any normal distribution that lies within 2 standard deviations of the mean is. Given variable x 3. It is in line.
X is a normally normally distributed variable with mean μ 30 and standard deviation σ 4.
Word Problem 1 Normal Distribution SOLUTION Answer. 4 marks 4 marks a b c Find the probability that on a particular day Kevin uses his mobile phone for. Z x - μ σ We mentioned then that wed need to remember the z-score later - this is that moment. This set of Probability and Statistics Multiple Choice Questions Answers MCQs focuses on Normal Distribution. Assume that these times are Normally distributed with a standard deviation of 38 hours. The proportion of any normal distribution that lies within 2 standard deviations of the mean is.