alculate the standard deviation of the following sample table of frequencies: Round your answer to 2 decimal places and be sure to use the correct formula.
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.
A survey was taken in a college class asking how many internet-capable devices each student owned, such as phones, computers, tablets, gaming systems, Fitbits, or smart home hubs. The data collected is given in the table below.
Number of Devices (x) |
Students With That Number of Devices (f) |
1 |
5 |
2 |
3 |
4 |
2 |
8 |
2 |
Calculate the standard deviation of the following sample table of frequencies: Round your answer to 2 decimal places and be sure to use the correct formula.
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