customer complaints\nx = 1 company\nhow many companies received 3 complaints or less?

Explanation:

Step1: Identify number of companies with 3 complaints

Count the 'x's at 3 on the number - of - complaints axis. There is 1 'x' at 3.

Step2: Identify number of companies with 2 and 1 complaints

There are no 'x's at 2 and 1.

Step3: Sum up the counts

Since there is 1 company with 3 complaints and 0 companies with 2 and 1 complaints, the total number of companies with 3 complaints or less is 1+0 + 0=1.

Answer:

1