Q. 75.0( 3 Votes )

The weights (in kg) of 50 wrestlers are recorded in the following table.

Find the mean weight of the wrestlers.

Answer :

We first find the class mark xi, of each class and then proceed as follows

Assumed mean, (a) = 125

Class width, (h) = 10

and total observations, (N) = 50

By step deviation method,

= 125 - 16

= 123.4kg

Hence, mean weight of wrestlers = 123.4kg

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Imp. Qs. of ProbabilityQuiz | Imp. Qs. of ProbabilityQuiz | Imp. Qs. of Probability37 mins
Let's understand ProbabilityLet's understand ProbabilityLet's understand Probability40 mins
When Chance is called ProbabilityWhen Chance is called ProbabilityWhen Chance is called Probability48 mins
Idioms and PhrasesIdioms and PhrasesIdioms and Phrases43 mins
Goprep Genius Quiz  | Analogy and ClassificationGoprep Genius Quiz  | Analogy and ClassificationGoprep Genius Quiz | Analogy and Classification48 mins
Acid - Types and NomenclatureAcid - Types and NomenclatureAcid - Types and Nomenclature52 mins
Consistent and Inconsistent EquationsConsistent and Inconsistent EquationsConsistent and Inconsistent Equations33 mins
Verb & TensesVerb & TensesVerb & Tenses46 mins
Combination and Decomposition ReactionsCombination and Decomposition ReactionsCombination and Decomposition Reactions59 mins
Resources and DevelopmentResources and DevelopmentResources and Development34 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses