Susan is attempting to calculate what grade she needs on her Biology final exam in order to make an A in her class. There are total of 9 examinations which are worth 60% of her grade and 1 Assignment worth 40%. If Susan makes a 100% on her Assignment and the following grades on examinations 1-8, what grade will she need on her final examination to make an A in her class? Remember, examinations are worth 60% of the final grade. To have an A in the class, Susan must have an overall score of 90% or above. Test 1: 95 Test 2: 85 Test 3: 84 Test 4: 65 Test 5: 92 Test 6: 90 Test 7: 94 Test 8: 76 Test 9:____
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.
Susan is attempting to calculate what grade she needs on her Biology final exam in order to make an A in her class. There are total of 9 examinations which are worth 60% of her grade and 1 Assignment worth 40%. If Susan makes a 100% on her Assignment and the following grades on examinations 1-8, what grade will she need on her final examination to make an A in her class?
Remember, examinations are worth 60% of the final grade. To have an A in the class, Susan must have an overall score of 90% or above.
- Test 1: 95
- Test 2: 85
- Test 3: 84
- Test 4: 65
- Test 5: 92
- Test 6: 90
- Test 7: 94
- Test 8: 76
- Test 9:____
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