| The Normal Distribution | |
Summary |
a normal distribution is a probability distribution of a continuous random variable with a bell-shaped frequency curve. a normal distribution and normal curve are symmetrical about the mode, median and mean. many distributions in real life are approximately normal distributions. e.g. heights and weights of a large group of people, lengths of leaves on a tree, etc. the standard deviation gives a measure of the spread of the values around the mean. probabilities associated with normal distributions can be found in tables. |
Key Skills |
solve problems involving normal distributions. |
Vocabulary |
normal distribution, normal curve, standard normal curve, standard deviation, mean, median, mode, z-score, symmetry |
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