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ENGS 116 Introduction to Engineering Computation (09) [25S]

ENGS 116 Introduction to Engineering Computation (09) [25S]

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Which is the correct approach for when we want to have Excel evaluate an IF statement for 2 different logic conditions? (for example B2>5 and B2<10).

=IF((logic_1, AND(IF logic_2)), value_if_true, value_if_false)

=AND(IF(logic_1, logic_2), value_if_true, value_if_false)

=IF((logic_1 AND logic_2), value_if_true, value_if_false)

=IF(AND(logic_1, logic_2), value_if_true, value_if_false)

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What does it mean when a regression curve "overfits" the data?

The regression curve overestimates all the data points.

❌

The regression curve loses its physical relevance to the data, implying a different relationship between variables.

✅

The regression curve underestimates all of the data points.

❌

The r-squared value equals 0.

❌

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For the above spreadsheet, how would you calculate the average of these cells?

=AVERAGE(H2:H10)

=AVERAGE(H2,H10)

=AVG(H2:H10)

=AVG(H2,H10)

In the above spreadsheet, the density value (cell E1) and g value (cell E2) are constants. How can the formula in cell B2 be modified to ensure that the density and g values do not change when the formula is applied to cells B3:B6?

=A2*$E2*$E1

=A2*($E2*E1$)

=A2*$E$2*$E$1

=A2*[E2*E1]

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How would you calculate the tangent of 30 degrees in Excel?

=TAN(30*PI()/180)

✅

=TANGENT(30)

❌

=TAN(30)

❌