8. A botany student measured the lengths of a sample of leaves to the nearest tenth of a centimeter. The data is shown in a frequency distribution below. a. Complete the cells of the given frequency distribution. (round to 3 decimals if necessary) Length (Class Limits) Relative Cumulative Class Midpoints Frequency Frequency Frequency 0-3.3 12 3.4 - 6.7 18 13 4 2 The cos Find the 17.0 - 20.3 Sold Cost $25,200 b. What is the class width of the distribution? Toyota Tundra 10 $33,825 c. Is this data skewed right, skewed left, or approximately symmetric? $36 190 d. What percentage of leaves are less than 6.7 cm? e. Compute the mean of the frequency distribution. (Round to 3 decimals - Include Units) 1.
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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