| Normal Distribution | |
Summary |
a normal distribution has a frequency curve which is bell-shaped. many populations in real life have approximately normal distributions. e.g. heights, weights or iqs of a large group of people. normal curves are symmetrical about the mean, median and mode. solving problems involving normal distributions usually requires using the standard normal curve which has a mean of 0 and a standard deviation of 1. the total area and probability under a standard normal curve is 1. |
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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