160 adults and 80 students seems to be correct
Answer:
1/1
Step-by-step explanation:
100/100=1/1=1
The normal rule to remember is 68-95-99.7, i.e. plus or minus three sigma corresponds to 99.7% of the probability. That leaves 0.3% in the two tails, or 0.15% in the tail above 3 sigma.
Answer: 0.15%
We need to see the graph to be able to answer the question
