Average age of the people of a country is shown in the following table:
Age (Years)10−2020−3030−4040−5050−60People303215129
Find out mean age by Direct Method.
Given data is:
Here, we use the direct method to compute the value of mean.
¯x=∑fixi∑fi
¯x=281098
¯x=28.67 (Approximately)
Hence, the average age of the people in the country is 28.67 years.