Answer:
884
Step-by-step explanation:
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
3
The assumed frequency of defects is 2/16.
When we apply this rate to 24, (2/16)*24, we get 3.
Therefore, we can assume around 3 defective boxes tomorrow.
280
you multiply 10 to 33 and that is p