David and Amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. They h
2 answers:
Answer:
David's equation is correct to model this linear relationship.
Step-by-step explanation:
David and Amanda have total savings money =$12350
If they spend money in each month =$240
Equation created by David
Equation created by Amanda
Amanda's equation is incorrect becuase their spending money multiplied by the number months and then added to their savings and increase the amount of their savings.
But in David's eqaution spending money multiply by the number of months and then subtracted from their savings .Therefore, it decrease the amount of saving money.
Hence, David's equation is correct ,because their spending money multiplied by the number of months and then subtracted from their saving money.
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Answer:
From the frequency table, let's calculate the row total.
Row total for phone call = 19 + 9 = 28
Row total for no phone call = 8 +6 = 14
To calculate their respective row relative frequencies, let's use:
Row relative freq =
Now, the two-way frequency table will be computed as:
For phone call:
Desirable behavior = ≈0.69
Undesirable behaviour = ≈0.32
No phone call:
Desirable behaviour = ≈ 0.57
Undesirable behaviour = ≈ 0.43
The complete two-way table is attached.
