Module 2 Quiz Preparation
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Hard
Median Hardiv
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Misalkan kita membuat array/list dengan nama variabel x dan berisi sesuai dengan gambar. Agar dapat mengambil array berikut:
array([[11, 14, 16],
[21, 24, 26],
[31, 34, 36]])
maka code yang tepat adalah
x[-4:-1, np.array([1, 4, 6])]
x[1:4, np.array([1, 4, 6])]
x[-4:-1, np.array([-9, -6, -4])]
x[1:4, np.array([-9, -6, -4])]
Semua jawaban benar
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika kita ingin generate array 2-D mengandung 3 baris dan 5 kolom random integer dari 0 sampai 100, maka code yang tepat digunakan adalah
random.rand(3,5)
random.randint(100, size=(3, 5))
Tidak ada yang benar
random.randint(100, size=(5, 3))
random.randn(3,5)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika kita memiliki df1 (atas) dan df2 (bawah) seperti pada gambar dan ingin menampilkan data seperti data di bawah ini:
A B C D F
A0 B0 C0 D0 NaN
A1 B1 C1 D1 NaN
A2 B2 C2 D2 NaN
A3 B3 C3 D3 NaN
NaN B0 NaN D0 F0
NaN B1 NaN D1 F1
NaN B3 NaN D3 F3
NaN B4 NaN D4 F4
maka code yang tepat digunakan adalah
join = pd.concat([df1, df2], axis=0, join='outer')
join = pd.concat([df1, df2], axis=1, join='inner')
join = pd.concat([df1, df2], axis=0, join='inner')
Tidak ada yang benar.
join = pd.concat([df1, df2], axis=1, join='outer')
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika kita ingin mengetahui jumlah data `clarity` yang unik pada data `diamonds`, code yang tepat digunakan adalah
df['clarity'].nunique()
Semua pilihan benar.
len(pd.unique(df['clarity']))
len(df['clarity'].unique())
len(df['clarity'].value_counts())
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Manakah cara yang tepat untuk mencari median harga berlian dengan jumlah carat lebih dari 0.1?
df[df['carat']>=0.1]['price'].median()
df[df['carat']==0.1]['price'].sum()/len(df[df['carat']==0.1])
df[df['carat']>0.1]['price'].median()
df.loc[df['carat']>0.1, 'price'].mean()
Semua jawaban benar
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Interpretasi manakah yang tepat untuk menggambarkan output dari kode berikut berdasarkan gambar tersebut:
df.groupby('cut').mean().sort_values('depth', ascending=True)['depth'].iloc[:3]
3 `cut` dengan rata-rata `depth` terendah
3 `cut` dan `depth` dengan rata-rata `depth` tertinggi
3 `cut` dan `depth` dengan rata-rata `depth` terendah
3 `cut` dengan rata-rata `depth` tertinggi
Rata-rata `depth` berdasarkan `cut`nya
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan gambar berikut, mana cara yang paling tepat untuk melakukan uji korelasi antara `depth` dan `table`?
df[['depth','table']].corr()
df.corr()[['depth','table']]
df['depth'].corr(df['table'])
df['depth'].corr(df['table'], method = 'pearson')
df['depth'].corr(df['table'], method = 'spearman')
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