Answer:
To form the table,
we substitute some value of x to find its value of y
When x = -2,
⇒ y = 1/2(-2) - 3 = -4
When x = - 1
⇒ y = 1/2(-1) - 3 = -3.5
When x = 0.
⇒ y = 1/2(0) - 3 = -3
When x = 1
⇒ y = 1/2(1) - 3 = -2.5
When x = 2
⇒ y = 1/2(2) - 3 = -2
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Step-by-step explanation:
Given blood cholesterol level was measured for each of 8 adults (in mg/dL) are:
264, 191, 160, 148, 262, 212, 268, 246
In order to find the mean, we need to add all those 8 numbers and divide by 8.
Therefore, mean =
In order to find the median, we need to arrange them in ascending order:
148, 160, 191, 212, 246, 262, 264, 268.
The middle most two values are 212 and 246.
Therefore, median =