The histogram shows the number of televisions in the homes of 90 community college students. Judging from the histogram, what is the approximate mean number of televisions in the homes in this collection? Explain. 0246 6 Number of TVs Select the correct answer below. OA. The mean number of televisions per home is between 4 and 5. The histogram shows a large number of homes with many televisions, which heavily skews the histogram to the right. O B. The mean number of televisions per home is about 3. For a randomly selected home, it is probably true that the home has 3 televisions. O C. The mean number of televisions per home is between 2 and 3. The histogram shows a large number of homes with few televisions, which heavily skews the histogram to the left. O D. The mean number of televisions per home is between 3 and 4. The mean is near the center, which is due to the fact that the histogram is roughly symmetric.
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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