Question
Download Solution PDFWhat is the mean deviation of the data 2, 9, 9, 3, 6, 9, 4 ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
To find the mean deviation, use the following steps
Step 1: Find the mean value for the given data values
Step 2: Now, subtract mean value form each of the data value given (Note: Ignore the minus symbol)
Step 3: Now, find the mean of those values obtained in step 2.
Mean deviation
Calculations:
Given data is 2, 9, 9, 3, 6, 9, 4
⇒ n = 7
Mean
⇒
Mean deviation
⇒ Mean deviation
⇒ Mean deviation = 2.57
Hence, the mean deviation of the data 2, 9, 9, 3, 6, 9, 4 is 2.57
Last updated on Jul 8, 2025
->UPSC NDA Application Correction Window is open from 7th July to 9th July 2025.
->UPSC had extended the UPSC NDA 2 Registration Date till 20th June 2025.
-> A total of 406 vacancies have been announced for NDA 2 Exam 2025.
->The NDA exam date 2025 has been announced. The written examination will be held on 14th September 2025.
-> The selection process for the NDA exam includes a Written Exam and SSB Interview.
-> Candidates who get successful selection under UPSC NDA will get a salary range between Rs. 15,600 to Rs. 39,100.
-> Candidates must go through the NDA previous year question paper. Attempting the NDA mock test is also essential.