Logical =REDUCE([initial_value], array, lambda(accumulator, value, body))

Quiz =REDUCE — 15 Questions

15 quiz questions about =REDUCE — test syntax, arguments, examples & errors!

Questions: 10 questions 15 questions Random 10 or 15 questions from the pool + shuffled options each time

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Progress — 15 questions 1 of 15

Question 1 of 15 1/15

Is =REDUCE volatile?

Question 2 of 15 2/15

Which formula is a valid example of =REDUCE?

Question 3 of 15 3/15

In =REDUCE, which is argument #3?

Question 4 of 15 4/15

How many optional arguments does =REDUCE have?

Question 5 of 15 5/15

What is the type of argument “initial_value” in =REDUCE?

Question 6 of 15 6/15

In =REDUCE, which is argument #2?

Question 7 of 15 7/15

Does =REDUCE return a dynamic array?

Question 8 of 15 8/15

Since which Excel version is =REDUCE available?

Question 9 of 15 9/15

Which statement about =REDUCE is correct?

Question 10 of 15 10/15

What is the fix for #VALUE! in =REDUCE?

Question 11 of 15 11/15

Which is the correct syntax of =REDUCE?

Question 12 of 15 12/15

What is the type of argument “array” in =REDUCE?

Question 13 of 15 13/15

What is the output type of =REDUCE?

Question 14 of 15 14/15

Which category does =REDUCE belong to?

Question 15 of 15 15/15

Is argument “array” required in =REDUCE?

Click a question to see the answer.

1. Is =REDUCE volatile?

A. —
B. No ✓
C. Yes
D. No

Explanation: REDUCE is not volatile.

2. Which formula is a valid example of =REDUCE?

A. =REDUCE(, A1:C2, LAMBDA(a,b,a+b^2)) ✓
B. REDUCE(, A1:C2, LAMBDA(a,b,a+b^2))
C. =LAMBDA(, A1:C2, LAMBDA(a,b,a+b^2))
D. =REDUCE(, A1:C2, LAMBDA(a,b,a+b^2), 0)

Explanation: Correct example: =REDUCE(, A1:C2, LAMBDA(a,b,a+b^2))

3. In =REDUCE, which is argument #3?

A. lookup_value
B. lambda ✓
C. value
D. initial_value

Explanation: Argument #3 is “lambda”.

4. How many optional arguments does =REDUCE have?

A. 5
B. 2
C. 4
D. 3 ✓

Explanation: =REDUCE has 0 required, 3 optional (3 total).

5. What is the type of argument “initial_value” in =REDUCE?

A. Any type ✓
B. Array
C. Date
D. Mixed

Explanation: Type of “initial_value” is “Any type”.

6. In =REDUCE, which is argument #2?

A. range
B. initial_value
C. value
D. array ✓

Explanation: Argument #2 is “array”.

7. Does =REDUCE return a dynamic array?

A. Yes
B. No ✓
C. —
D. No

Explanation: REDUCE does not spill.

8. Since which Excel version is =REDUCE available?

A. All versions
B. Excel 365 ✓
C. Excel 2007 (Compatibility)
D. Excel 2019

Explanation: Version: “Excel 365”.

9. Which statement about =REDUCE is correct?

A. Select entire column for best performance
B. Use the initial_value argument to set the starting value for the accumulator parameter. In Example 2, where you multiply the accumulator, set the value to 1 to avoid multiplying by 0. ✓
C. Volatile and recalculates every time
D. Requires add-in

Explanation: Correct: Use the initial_value argument to set the starting value for the accumulator parameter. In Example 2, where you multiply the accumulator, set the value to 1 to avoid multiplying by 0.

10. What is the fix for #VALUE! in =REDUCE?

A. Output is always a dynamic array
B. Text is always ignored
C. Check the number of LAMBDA parameters ✓
D. Only works in old versions

Explanation: Providing an invalid LAMBDA function or an incorrect number of parameters returns a #VALUE! error called "Incorrect Parameters". — Fix: Check the number of LAMBDA parameters

11. Which is the correct syntax of =REDUCE?

A. =LAMBDA([initial_value], array, lambda(accumulator, value, body))
B. REDUCE([initial_value], array, lambda(accumulator, value, body))
C. =REDUCE([initial_value], array, lambda(accumulator, value, body)) ✓
D. =REDUCE([initial_value], array, lambda(accumulator, value, body, 0)

Explanation: Correct syntax: =REDUCE([initial_value], array, lambda(accumulator, value, body))

12. What is the type of argument “array” in =REDUCE?

A. Number
B. Logical
C. Array ✓
D. Any type

Explanation: Type of “array” is “Array”.

13. What is the output type of =REDUCE?

A. Number
B. Text
C. Mixed ✓
D. Value

Explanation: Output is “Mixed”.

14. Which category does =REDUCE belong to?

A. Web
B. Logical ✓
C. Text
D. Database

Explanation: Category is “Logical”.

15. Is argument “array” required in =REDUCE?

A. —
B. No
C. Yes
D. No ✓

Explanation: “array” is optional.