Question 7
On the most recent exam in Prof. Xochi’s class,
• $5$ students earned a score of at least $95\%,$
• $13$ students earned a score of at least $90\%,$
• $27$ students earned a score of at least $85\%,$ and
• $50$ students earned a score of at least $80\%.$
How many students earned a score of at least $80\%$ and less than $90\%?$
• $5$ students earned a score of at least $95\%,$
• $13$ students earned a score of at least $90\%,$
• $27$ students earned a score of at least $85\%,$ and
• $50$ students earned a score of at least $80\%.$
How many students earned a score of at least $80\%$ and less than $90\%?$