In Exercises 47–56, find the quadratic function that has the given vertex and goes through the given point. 47. vertex: (-1, 4) point: (0, 2) 48. vertex: (2, –3) point: (0, 1) 49. vertex: (2, 5) point: point: (-2, 0) 51. vertex: (-1, –3) point: (-4, 2) 54. vertex: (5, 4) 50. vertex: (1, 3) 52. vertex: (0, –2) point: 55. vertex: (5, -) point= 53. vertex: (-2, -4) point: (-1, 6) 56. vertex: (-) point: (2, –5) point: (0, 0)
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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