Scores from an exam are normally distributed with a mean of 85 and a standard deviation of 5. suppose 188 students take the exam. about how many would receive a score above 80? 158 students 60 students 122 students 153 students

The mean is and standard deviation is . Then the variable .

Use substitution , then the variable .

The probability can be calculated in the following way:

for X=80, and . From the diagram .

Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80

73.0769230769% of the games were won

x = 12

y = 1

for the points!