Answer:
B
Step-by-step explanation:
To get probability of AT MOST 4 responses means all the probabilities Equal to or Less Than 4.
From the table, that is probability of 0, 1, 2, 3 or 4. (OR in probability means adding)
Hence, we add the number of editorials for P=0,1,2,3, and 4 and then divide by total number of editorials.
[tex]P(\leq4)= \frac{20+30+56+38+34}{200}\\P(\leq4)=\frac{178}{200}\\P(\leq4)=0.89[/tex]
Answer choice B is right.
