Suppose that these 15 measurements are respectively labeled x1,x2,..,x15. (Thus,-27 is labeled x1,62 is labeled x2,and so on.)
Find. 15 over the sum sign and i=1 under the sum sign(x1 + 43)
I ahve no idea how to solve this becaue I never seen this type of math before. Someone please help me!
Are you sure that (x1 + 43) after the capital-sigma sum sign is not
xi + 43 ?
It makes no sense otherwise.
If the general term is xi +43, add up the xi values from x1 to x15 and add 15*43 to that sum.
To solve the given expression, we need to substitute the values for x1, x2, ..., x15 into the equation and calculate the sum.
Given that x1 = -27, x2 = 62, and so on, we can substitute these values into the expression:
15
Σ (x1 + 43)
i=1
Now, let's calculate the sum:
= (-27 + 43) + (62 + 43) + ... + (xn + 43)
To calculate this, you need to add each value of xi to 43 and then sum up the results.
For example, the first term is (-27 + 43), which equals 16. Then, you need to add this to the value of the second term: 16 + (62 + 43). Continue this process until you reach the last term.
Once you have the results of each sum, you need to add them all together.
Let's calculate it step by step:
First term: (-27 + 43) = 16
Second term: (62 + 43) = 105
Continue this process for each term until you reach the fifteenth term (xn).
Once you have calculated each term, add them all together:
16 + 105 + ... + (xn + 43)
This will give you the final result of the expression.