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Bunuel
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1111fate
How is the first part true? along with card grid and horizontal scroll there is minimal tiles and dynamic field also that have same median.
Kindly explain the gap in my understanding

How?

For 8 values, the median is the average of the 4th and 5th values after sorting.

Minimal tiles values sorted:

16, 18, 18, 19, 20, 21, 22, 30

Median = (19 + 20)/2 = 19.5

Dynamic feed values sorted:

20, 22, 23, 25, 26, 27, 28, 33

Median = (25 + 26)/2 = 25.5

So Minimal tiles and Dynamic feed do not have the same median. Only Card grid and Horizontal scroll both have median 23.
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The median of the minimal tiles is 19.5 not 20.5.
Bunuel
Official Solution:



• Exactly two layouts have the same median satisfaction rate.

To find each median, the satisfaction rates for each layout are sorted, and the median is the average of the 4th and 5th values.

- Card grid: median = (22 + 24)/2 = 23
- Compact list: median = (23 + 25)/2 = 24
- Horizontal scroll: median = (22 + 24)/2 = 23
- Minimal tiles: median = (20 + 21)/2 = 20.5
- Dynamic feed: median = (25 + 26)/2 = 25.5

Card grid and Horizontal scroll both have a median of 23.

Answer: True

• Exactly two layouts have the same range of satisfaction rates.

Range = highest value − lowest value.

- Card grid: 31 − 14 = 17
- Compact list: 34 − 17 = 17
- Horizontal scroll: 27 − 15 = 12
- Minimal tiles: 30 − 16 = 14
- Dynamic feed: 33 − 20 = 13

Card grid and Compact list both have a range of 17.

Answer: True

• Exactly two layouts have the same highest satisfaction rate across all user groups.

The highest satisfaction rate for each layout is:

- Card grid: 31
- Compact list: 34
- Horizontal scroll: 27
- Minimal tiles: 30
- Dynamic feed: 33

All five layouts have distinct maximum values.

Answer: Not true


Correct answer:

Exactly two layouts have the same median satisfaction rate. "True"

Exactly two layouts have the same range of satisfaction rates. "True"

Exactly two layouts have the same highest satisfaction rate across all user groups. "Not true"
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Jay29
The median of the minimal tiles is 19.5 not 20.5.


Fixed the typo. Thank you!
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