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Find the average (approx.) number of laptop sold by stores K, L and M in May.
313
231
263
256
None of the above
313
Calculate the sum of the tens digits (3+4+6=13) and unit digits (5+2+2=9). Average = (200*3 + 130 + 9)/3 = 600/3 + 139/3 = 200 + 46.33 = 246.33. Round to the nearest whole number.
Laptop sales for stores K, L, and M in the month of May are: K=235, L=342, and M=362.
Average=nтИСxiтАЛтАЛ
Calculate the sum of the tens digits (3+4+6=13) and unit digits (5+2+2=9). Average = (200*3 + 130 + 9)/3 = 600/3 + 139/3 = 200 + 46.33 = 246.33. Round to the nearest whole number.
Students often misread the columns and rows, selecting values from the wrong month or store. Here, 'May' is the third column of data points.
Identify data values
From the table, locate the row for stores K, L, M and the column for 'May'. The values are K=235, L=342, and M=362.
K=235,L=342,M=362
Calculate total sum
Sum the laptop sales for the three specified stores: 235+342+362.
235+342+362=939
Calculate average
Divide the total sum by the number of stores (n=3) to find the average.
Average=3939тАЛ=313
A is correct because the calculated average of the laptop sales for stores K, L, and M in May is exactly 313.
Averages are fundamental in statistics; always perform a 'sanity check' by comparing the result to the range of the provided data points (the average must be between 235 and 362).
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