The mean of five numbers is 10.if each number is decreased by 3 mean of the new number is
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Answer:
Find the sum of the 5 numbers:
Mean of the 5 numbers = 10
Sum of the 5 numbers = 10 x 5 = 50
.
Find the decrease in amount:
Decrease of 1 number = 3
Decrease of 5 numbers = 3 x 5 = 15
.
Find the new mean:
Sum of the new 5 numbers = 50 - 15 = 35
Mean of the new 5 numbers = 35 ÷ 5 = 7
.
Answer: The mean of the new numbers is 7
Step-by-step explanation:
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