Question
Download Solution PDFThe arithmetic mean of the observations 79, 92, 39, 57, 91, 28, 74, 90 and 44 is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The observations are: 79, 92, 39, 57, 91, 28, 74, 90, 44
Number of observations (n) = 9
Formula used:
Arithmetic Mean (AM) = (Sum of observations) ÷ (Number of observations)
Calculation:
Sum of observations = 79 + 92 + 39 + 57 + 91 + 28 + 74 + 90 + 44
⇒ Sum = 79 + 92 + 39 + 57 + 91 + 28 + 74 + 90 + 44 = 594
Arithmetic Mean = 594 ÷ 9 = 66
∴ The correct answer is option (1).
Last updated on Jul 17, 2025
-> RRB NTPC Under Graduate Exam Date 2025 has been released on the official website of the Railway Recruitment Board.
-> The RRB NTPC Admit Card will be released on its official website for RRB NTPC Under Graduate Exam 2025.
-> UGC NET Result 2025 out @ugcnet.nta.ac.in
-> HSSC CET Admit Card 2025 has been released @hssc.gov.in
-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here.
-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.
-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.
-> Prepare for the exam using RRB NTPC Previous Year Papers.
-> Get detailed subject-wise UGC NET Exam Analysis 2025 and UGC NET Question Paper 2025 for shift 1 (25 June) here
->Bihar Police Driver Vacancy 2025 has been released @csbc.bihar.gov.in.