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Machine learning Interview

❓ Что выведет следующий код на Python (модуль statistics)?


import statistics as stats
import math

data = [1, 2, 2, float('nan'), 3, 4]

print("Mean:", stats.mean(data))
print("Median:", stats.median(data))
print("Mode:", stats.mode(data))

🔢 Варианты ответа:

A)


Median: 2.5
Mode: 2

B)


Median: 2.5
Mode: 2

C)ValueError: nan is not a valid number

D)


Median: nan
Mode: 2

✅ Правильный ответ: C

💡 Почему?
- Модуль

statistics

не умеет работать с

NaN

.
-

stats.mean()

и

stats.median()

вызовут

StatisticsError

или

ValueError

.
- В отличие от

numpy.nanmean

, здесь всё падает.
📌 Подвох — в

float('nan')

в списке.

www.group-telegram.com/pl/machinelearning_interview.com/1731

2.9K viewsApr 16 at 11:10

group-telegram.com/machinelearning_interview/1731

Create: 2025-04-16
Last Update: 2025-06-19 07:19:54

❓ Что выведет следующий код на Python (модуль statistics)?


import statistics as stats
import math

data = [1, 2, 2, float('nan'), 3, 4]

print("Mean:", stats.mean(data))
print("Median:", stats.median(data))
print("Mode:", stats.mode(data))

🔢 Варианты ответа:

A)


Median: 2.5
Mode: 2

B)


Median: 2.5
Mode: 2

C)ValueError: nan is not a valid number

D)


Median: nan
Mode: 2

✅ Правильный ответ: C

💡 Почему?
- Модуль

statistics

не умеет работать с

NaN

.
-

stats.mean()

и

stats.median()

вызовут

StatisticsError

или

ValueError

.
- В отличие от

numpy.nanmean

, здесь всё падает.
📌 Подвох — в

float('nan')

в списке.

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Date: 2025-06-19|

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