Card Hypothesis

How much evidence is enough evidence?

FACT: Each card has a number on one side and a letter on the other.

HYPOTHESIS: Every card that has a vowel on one side has an even number on its opposite side.

THE TEST: Which card or cards must you turn over in order to test the Hypothesis?

(Obviously, you COULD turn over all four cards, and perhaps you must. But if you can do it with fewer, you’ll save yourself time and energy gathering your evidence.)

Card Hypothesis

Type your answer in the Reply field below and Save.
The 15 possible answers are:

All four cards: G 2 3 E
Three cards: G 2 3 / G 2 E / G 3 E / 2 3 E
Just two cards: G and 2 / G and 3 / G and E / 2 and 3 / 2 and E / 3 and E
Just one card: Card G only / Card 2 only / Card 3 only / Card E only

71 Responses to Card Hypothesis

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  1. pitandthependulum22 says:
    January 26, 2023 at 8:11 am

    E and 3

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  2. fulcrum66 says:
    January 26, 2023 at 8:11 am

    I would pick E and 2

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  3. Water says:
    January 26, 2023 at 8:11 am

    2 and E

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  5. clevelandbrown03 says:
    January 26, 2023 at 8:14 am

    its E and 2 because the number is even and the letter E is a vowel

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  6. charlieclover says:
    January 26, 2023 at 9:39 am

    2 and E

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  7. mellowtacos says:
    January 26, 2023 at 9:39 am

    G 2 3 E

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  8. tlap23 says:
    January 26, 2023 at 9:39 am

    Card E and Card 2

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  9. sunflower0311 says:
    January 26, 2023 at 9:39 am

    3 & E

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  10. sortableelms says:
    January 26, 2023 at 9:39 am

    E and 2

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  12. chickennugget246 says:
    January 26, 2023 at 9:40 am

    G 2 3 E

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  13. miliwawa says:
    January 26, 2023 at 9:40 am

    2 and E

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  14. cherries267 says:
    January 26, 2023 at 9:40 am

    G 2 3 E

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  15. doglover846 says:
    January 26, 2023 at 9:41 am

    E and 2

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  17. Shazammm says:
    January 26, 2023 at 9:41 am

    You can flip over all the cards. However, I would say G and 3.

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  20. g00dsoup says:
    January 26, 2023 at 9:41 am

    G 2 3 E

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  21. inspireangels says:
    January 26, 2023 at 9:43 am

    G, 2, and E

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