Answer:
Not proportional
Step-by-step explanation:
If x and y are proportional then the equation relating them is
y = kx ← k is the constant of proportionality
To determine if x and y are in proportion then k must be equal for all ordered pairs, that is
k =
(2, 0) k = = 0
(4, 2) → k = =
(6, 4) → k = =
(8, 6) → k = =
Since k is not constant for all values then not in proportion
We are told that the Taylors Have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was 60.26. Later , Mrs.Taylor discovered that 1 weeks expense of $74 was incorrectly recorded as $47.
We can find the correct mean weekly expenses by calculating the mean of difference between 74 and 47, then adding it to the given mean weekly expenses.
Now let us add 2.25 in 60.26 to find the correct mean weekly expenses.
Therefore, the correct mean weekly expenses for the Taylors will be 62.51.