import numpy as np

list1 = np.zeros([2,4])
print(list,'\n')

list2 = np.ones([3,5])
print(list2,'\n')

list3 = np.random.rand(2,4)
print(list3,'\n')

list4 = np.random.randint(1,10,3)
print(list4,'\n')

list5 = np.random.choice([10,20,30])
print(list5,'\n')