a researcher asked people how many letters they had written in the past year and recorded the…

a researcher asked people how many letters they had written in the past year and recorded the results.\nwriting letters\nletters written\nhow many people wrote at least 4 letters?\npeople
Answer
Explanation:
Step1: Identify values for "at least 4"
The term "at least 4" includes values 4, 5, and 6.
Step2: Count people for 4 letters
There are 6 "x" marks above the number 4.
Step3: Count people for 5 letters
There are 5 "x" marks above the number 5.
Step4: Count people for 6 letters
There are 9 "x" marks above the number 6.
Step5: Calculate the total sum
$$6 + 5 + 9 = 20$$
Answer:
20 people