The following table shows the salary of 7 people in an office last year.
Name Income
Andy £13500
Bevan £27500
Cheryl £13250
Deva £75000
Elliott £18750
Frankie £27500
Grace £15000
a) Work out the mean income to 2 DP.
b) Deva was given a large bonus for 30 years service.
Excluding Deva's income, what was the mean income for the remaining 6 workers ?
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Step-by-step explanation:
Mean of n numbers = Sum of all numbers/n
1) So, mean income of all workers
= sum of their incomes/7
Sum of incomes = 13500+27500+13250+75000+18750+27500+15000 = 190500
mean = 190500/7 = 27,214.28
2) excluding deva,
sum of all incomes = 190500-75000 = 115500
mean = 115500/6 = 19250
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