PLEASE HELP! What is the mean of the data represented by this normal distribution?
1 answer:
To find the mean, you add up all the numbers and divide by the number of numbers in the sequence
28+42+56+70+84+98+112
=490 divide by 7
=70
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Hi here is your answer
an=5n-3
an-1= -3+5n
an-1= -3+5(n-1)
an-1= -3+5n-5
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d=5n-3-5n+7
d=4
Answer: d = 4
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