Consider the following sample data: 10 13 16 18 20 20 23 20 23 25 Click here for the Excel Data File a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Covariance
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.
![Consider the following sample data:
10
16
18
20
23
y
13
20
23
20
25
Click here for the Excel Data File
a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your intermediate
calculations to at least 4 decimal places and final answer to 2 decimal places.)
Covariance
b. Calculate the correlation coefficient. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal
places.)
Correlation coefficient](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0a30448-ad5a-4444-9c10-c7b63daab959%2Fd5bf4bf7-8abd-4dd3-9c8f-b38dacd23887%2Fhcrqyz8_processed.jpeg&w=3840&q=75)
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