In Python I would like to create a distribution that picks a random number between 5 and 10, 10% of the time. The other 90% of the time, I would like it to pick zero.

I would like to sample 10,000 numbers.

### >Solution :

You can use `numpy.random.choice`

:

```
import numpy as np
nums = list(range(5, 10+1))
# [5, 6, 7, 8, 9, 10]
out = np.random.choice([0]+nums, p=[.9]+[.1/len(nums)]*len(nums), size=10000).tolist()
```

distribution of values:

##### alternative

Other approach, if you want exactly 90% of 0 and the rest divided in exactly the same number of each value and the order needs to be random:

```
nums = list(range(5, 10+1))
out = nums*1000+[0]*9000
import random
random.shuffle(out)
```