Speed Number of Cars Relative frequency 0-29 4 30-59 16 60-90 40 90-120 20 which of the following relative Frequency correspond to the given distribution? a) Speed Number of Cars Relative Frequency 0-29 4 4% 30-59 16 16% 60-90 40 40% 90-120 20 30% b) Speed Number of Cars Relative frequency 0-29 4 10% 30-59 16 20% 60-90 40 50% 90-120 20 20% c) Speed Number of Cars Relative frequency 0-29 4 5% 30-59 16 20% 60-90 40 50% 90-120 20 25% d) Speed Number of Cars Relative frequency 0-29 4 5% 30-59 16 15% 60-90 40 60% 90-120 20 20%
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.
| Speed | Number of Cars |
Relative frequency |
| 0-29 | 4 | |
| 30-59 | 16 | |
| 60-90 | 40 | |
| 90-120 | 20 |
which of the following relative Frequency correspond to the given distribution?
a)
| Speed | Number of Cars | Relative Frequency |
| 0-29 | 4 | 4% |
| 30-59 | 16 | 16% |
| 60-90 | 40 | 40% |
| 90-120 | 20 | 30% |
b)
| Speed | Number of Cars |
Relative frequency |
| 0-29 | 4 | 10% |
| 30-59 | 16 | 20% |
| 60-90 | 40 |
50% |
| 90-120 | 20 | 20% |
c)
| Speed | Number of Cars |
Relative frequency |
| 0-29 | 4 | 5% |
| 30-59 | 16 | 20% |
| 60-90 | 40 |
50% |
| 90-120 | 20 | 25% |
d)
| Speed | Number of Cars |
Relative frequency |
| 0-29 | 4 | 5% |
| 30-59 | 16 | 15% |
| 60-90 | 40 |
60% |
| 90-120 | 20 | 20% |
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