What proportion of the statistics students in this class are sophomores? 19 0.202 0.302 0.105
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.
![The 94 students in a statistics class are categorized by gender and by year in school. The numbers obtained are displayed in
the table.
Gender Freshman Sophomore Junior Senior Graduate Total
Male
1
2
9 17
2 31
Female
23
17
13
7
3
63
Total
24
19
22
24
5
94
What proportion of the statistics students in this class are sophomores?
19
0.202
0.302
0.105](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa7c9f008-b561-4eed-8181-2ef11cf38909%2Ff7bd9381-2e86-4f94-a354-bda24815010e%2F4b8g8mp_processed.png&w=3840&q=75)
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