Katie works as a waitress and records her monthly tips in the table shown below. If Katie decided not to work the month of November, how would her five month average compare to her six month average for monthly tips? June July August Septemper October November $133.45 $235.31 $239.45 $258.87 $298.45 $115.67 a. Her monthly average would have decreased by $19.57. b. Her monthly average would have increased by $19.57. c. Her monthly average would have increased by $2.07. d. Her monthly average would have decreased by $2.07.

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Brainly2232 Brainly2232 · Answer 1 · 2020-07-11T16:23:12+02:00

Answer:

Correct answer is B.) Her monthly average would have increased by $19.57.

Step-by-step explanation:

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MrRoyal MrRoyal · Answer 2 · 2022-04-27T14:28:12+02:00

The true statement about her average monthly tip is (b) Her monthly average would have increased by $19.57.

The average of a dataset is simply the mean value or the expected value of the dataset

The table is given as:

June July August September October November

$133.45 $235.31 $239.45 $258.87 $298.45 $115.67

For the 6 months, the average is:

Average = (133.45+235.31+239.45+258.87+298.45+115.67)/6

Average = 213.53

For the 5 months (i.e. exclusive of December), the average is:

Average = (133.45+235.31+239.45+258.87+298.45)/5

Average = 233.10

The 5 months average is greater than the 6 months average.

And the difference (d) is:

d = 233.10 - 213.53

Evaluate

d = 19.57

Hence, Her monthly average would have increased by $19.57.