Home
Class 11
MATHS
For two firms A and B belonging to the s...

For two firms A and B belonging to the same industry the following data is given

Find the combined variance of the two firms

Text Solution

Verified by Experts

The correct Answer is:
`117.26`
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER-1

    ICSE|Exercise Section-B|10 Videos

  • MODEL TEST PAPER 14

    ICSE|Exercise SECTION C |10 Videos

  • MODEL TEST PAPER-15

    ICSE|Exercise SECTION-C |8 Videos

Similar Questions

Explore conceptually related problems

An analysis of daily wages of casual laboures in two firms A and B belonging to the same industry gives the following result : If the combined mean is Rs 116.82 find the standard deviation of wages of all casual labourers in the two firms taken in together .

An analysis of monthly wages paid to the works of two firms A and B belonging to the same industry gives the following results: Firm A Firm B Number of workers 1000 1200 Average monthly wages Rs. 2800 Rs. 2800 Variance of distribution of wages 100 169 In which firm, A or B is there greater variability in individual wages?

An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following result and no. of workers of firm A and B are 586 and 648 respectively No. of wage earners Firm A Firm B Mean of monthly wages Rs 5253 Rs 5253 Variance of the distribution 100 121 of wages (i) Which firm A or B pays larger amount as monthly wages? (ii) Which firm, A or B, show greater variability in individual wages?

An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following results: Firm A Firm B No. of wages earners 586 684 Mean of monthly wages Rs. 5253 Rs. 5253 Variance of the distribution of wages 100 121 Which firm A or B pays to larger mount as monthly wages? Which firm A or B shows greater variability in individual wages?

An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following results: Firm A Firm B No. of wage earners 586 648 Mean of monthly wages Rs 5253 Rs 5253 Variance of the distribution of wages 100 121 (i) Which firm A or B pays larger amount as monthly wages? (ii) Which firm, A or B, shows greater variability in individual wages?

An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following results: Firm A Firm B No. of wage earners 586 648 Mean of monthly wages Rs 5253 Rs 5253 Variance of the distribution of wages 100 121 (i) Which firm A or B pays larger amount as monthly wages? (ii) Which firm, A or B, shows greater variability in individual wages?

An analysis of the weekly wages paid to workers in two firms A and B, belonging to the same industry gives the following results; Firm A Firm B No. of wages earners 586 648 Average weekly wages Rs. 2. Rs. 47.5 Distribution of wages 100 121 Which firm A or B pays out larger amount as weekly wages? Which firm A or B has greater variability in individual wages?

An analysis of monthly wages paid to workers intwo firms A and B, belonging to the same industry, gives the following results: (i) Which firm A or B pays larger amount as monthly wages? (ii) Which firm A or B shows greater variability in individual wages?