Find the median income of the following frequency distribution:Weekly Income(Rs.)0 –10001000 –20002000 –30003000 –40004000 –50005000 –6000Frequency 250 190 100 40 15 5

Calculate the value of median from the following data:Income 1,200 1,800 5,000 2,500 3,000 1,600 3,500No. OfPersons12 16 2 10 3 15 7

Some students conducted a survey on some people’s weekly income:$1500,$400,$1700,$400,$175500,$500$1500,$400,$1700,$400,$175500,$500The mean of these people’s weekly income is .The median of these people’s weekly income is .Which number, mean or median, is a better way to represent these people’s weekly income?meanmedian

In order to monitor the quantity of capacitors being produced at an industrial plant per week thefollowing frequency distribution table was produced:Number of Capacitors Number of weeks200 to less than 225 10225 to less than 250 17250 to less than 350 18350 to less than 450 4450 to less than 550 3(a) Calculate the mean and standard deviation of the number of capacitors producedper week. (8 marks)(b) Calculate the median and the mode of the number of capacitors. (8 marks)(c) What do the values of the mean, median and mode indicate? Explain. (5 marks)(d) Estimate how many weeks that there were fewer than 275 capacitors produced

Example (the formula for the mode):- Calculate the mode of the following frequency distributionValue FrequencyAt least Less than10 25 625 40 1940 55 1255 70 770 85 3{Answer:- 34.75}Exercise 2(p 256):- An analysis of sales invoices outstanding at the end of February is as follows:Invoice value Number ofinvoicesAt least Less thanRs. Rs.10 25 425 40 840 55 1855 70 970 85 3{Answer:- Rs. 47.89}Example (the median p258):- Find median of the following values:(i) 8, 6, 9, 12, 15, 6, 3, 20, 11.(ii) 8, 6, 7, 2, 1, 11, 3, 2, 5, 2{Answer:- (i) 9 , (ii) 3 }Example (median of an ungrouped frequency distribution):- Find the median of an ungrouped frequencydistributionValue X 8 12 16 17 19Frequency f 3 7 12 8 5{Answer:- 16}Example (the median of a grouped frequency distribution):- The average monthly earning of 135employees of Honda Ltd. Have been analyzed as a grouped frequency distribution as follows:Average monthly earnings Number ofinvoicesMore than Not more thanRs. Rs.120 140 12140 160 49160 180 25180 200 18200 220 17220 240 14Calculate the median monthly earnings of employees of Honda Ltd.{Answer:- Rs. 165.60}Exercise 3(p 260):- The following grouped frequency distribution gives the annual wages of 200 employeesin an engineering firm.WagesRs.Number of employees5000 and less than 5500 45500 and less than 6000 266000 and less than 6500 1336500 and less than 7000 357000 and less than 7500 2Calculate mean, median and mode of annual wages.{Answer:- Mean = Rs. 6262.50 Median = Rs. 6263.16 Mode = Rs. 6260.98}

The average monthly income of P and Q is Rs. 6050. The average monthly income of Q and R is Rs. 5250 and the average monthly income of P and R is Rs. 6200. The monthly income of P is