BANA6620 Quiz 3 - Random, operations, agrregstions

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Last updated 2:49 AM on 9/8/26
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9 Terms

1
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no.random.rand(n)?

Creates n random floats in:

[0,1)

2
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np.random.normal(mean,std, size)?

Random values from a normal distribution

Using;

Mean

Standard deviation

Number/size of values

3
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no.random.randint(low, high, size)?

Random integers in:

[low,high)


LOW ✅

HIGH 🛑

4
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NumPy element-wise operation?


Np.array([1,2,3]) *2

[2 4 6]

5
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What happens when same-shaped NumPy arrays are added?

Added element-by-element

6
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What does np.mean(arr) calculate?

Mean of all elements

7
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axis=0?

COLUMNS

8
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axis=1?

ROWS

9
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What does np.median(arr) calculate?

The median