Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore, and recorded the number of pages in each textbook and its cost. The bivariate data is shown below, Number of Pages (x) | Cost(y) 280 51.2 596 88.44 800 124 795 118.3 878 130.92 429 76.06 571 98.94 668 116.52 368 67.52 Click to Copy-and-Paste Data A student calculates a linear model y = 0.13 v o x + - (Please show your answers to two decimal places) Use the model above to estimate the cost when number of pages is 725 Cost = $ (Please show your answer to 2 decimal places.)
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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