Writing You want to buy a pet lizard that costs $45. You already have $13 and you plan to save $9 per week. If w represents the number of weeks until you have enough money to buy the lizard, what equation could you use to find the value of w? Use pencil and paper. Explain how you could set up an equation to find the amount of money you should save each week if you want to buy the lizard in six weeks. Choose the correct answer below. O A. 9-13w = 45 O B. 13w-9 = 45 O C. 9w+ 13 = 45 O D. 9w- 13 = 45 O E. 13w +9 = 45 O F. 13-9w = 45
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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