Level 1 exam — harder

Exam — fresh questions

1.1 · Recall

1. A cell displays «25%». What is it worth in calculations?

The Percentage format dresses 0.25; the calculations use 0.25. The format changes the display, never the value.
1.1 · Application

2. Wassim enters «12,500 DA» and =SUM(B2:B13) returns 0. What to do?

With units, the cells are non-calculable text. Plain numbers + Currency format: the SUM answers.
1.2 · Recall

3. What is the order of precedence of calculations in Excel?

Parentheses first, then ^, then × ÷, finally + −. Hence =2+3*4 = 14.
1.2 · Application

4. Price in B2, discount in C2 (0.10). Which formula applies the discount?

The parentheses compute (1-discount) before the multiplication: =B2*(1-C2). Without them, the order skews the result.
1.2 · Arbitration

5. A long formula without parentheses gives a doubtful result. What arbitration?

Parentheses guarantee the intended order and the re-reading; references keep the calculation alive.
1.3 · Recall

6. What does =COUNT(B2:B13) count?

COUNT counts numbers; COUNTA counts non-empty (numbers + text). For days sold, it's COUNT.
1.3 · Application

7. B2:B13 contains sales and an «N/A». What does =AVERAGE(B2:B13) return?

AVERAGE ignores text and blanks: sum of the numbers divided by their count.
1.3 · Application

8. Wassim wants the month's total, average, min and max. Which functions?

The four aggregation functions on the range: total, average, bounds — without manual addition.
1.4 · Application

9. Rate in E1, amounts in B2:B41. Which formula to copy down?

B2 follows each row (relative), $E$1 stays frozen (absolute). Without $, E1 drifts toward emptiness.
1.4 · Arbitration

10. Should you freeze everything (=$B$2*$E$1) «to protect» the copying?

Freezing everything blocks useful copying: each row would recompute B2. Constant frozen, data free.
1.5 · Application

11. You enter 1 only, you drag the handle. Result?

A single value = copy as is. For a series, enter two values (1 and 2) so Excel deduces the step.
1.5 · Arbitration

12. Wassim must sort a Name/Amount table by amount. Which gesture?

Sorting a single column disconnects the rows. Whole table: each name follows its amount.
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