25 Views

Question : The mean of 9 observations is 16. When one more observation is included, the new mean becomes 17. What is the value of the 10th observation?

Option 1: 9

Option 2: 16

Option 3: 26

Option 4: 30


Team Careers360 24th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 26


Solution : Given:
The mean of 9 observations is 16. One more observation is included and the new mean after becomes 17.
Tenth observation = sum of ten observations – sum of nine observations
= (17 × 10) – (16 × 9)
= 170 – 144
= 26
Hence, the correct answer is 26.

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books