The scores on the statistics class final exam follow a normal distribution, with a mean of 80 and a standard deviation of 5. What percent of students scored 90 or better? A34%

B16%

C5%

D2.5%

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.