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) 767 72.69 241 29.87 900 79 437 52.59 913 88.91 440 44.8 479 52.53 347 36.29 574 65.18 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 432. 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) |
|---|---|
| 767 | 72.69 |
| 241 | 29.87 |
| 900 | 79 |
| 437 | 52.59 |
| 913 | 88.91 |
| 440 | 44.8 |
| 479 | 52.53 |
| 347 | 36.29 |
| 574 | 65.18 |
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 432.
Cost = $ (Please show your answer to 2 decimal places.)
Step by step
Solved in 2 steps with 1 images
