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 are shown below: Number of Pages (xx) Cost(yy) 364 44.12 364 50.12 648 68.84 432 57.56 387 44.96 300 35 562 65.96 675 69 218 29.44 A student calculates a linear model yy = xx + . (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 594. 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.
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 are shown below:
Number of Pages (xx) | Cost(yy) |
---|---|
364 | 44.12 |
364 | 50.12 |
648 | 68.84 |
432 | 57.56 |
387 | 44.96 |
300 | 35 |
562 | 65.96 |
675 | 69 |
218 | 29.44 |
A student calculates a linear model
yy = xx + . (Please show your answers to two decimal places)
Use the model to estimate the cost when number of pages is 594.
Cost = $ (Please show your answer to 2 decimal places.)
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