The binary transaction table with respect to 7 items for 5 customers is as given below.

Item 1

Item 2

Item 3

Item 4

Item 5

Item 6

Item 7

Customer 1

1

1

0

1

0

0

1

Customer 2

0

0

0

0

1

1

1

Customer 3

1

1

1

0

0

0

0

Customer 4

1

0

1

0

1

0

0

Customer 5

0

1

0

1

1

0

1

In the above table, '1' refers to the incident of purchase and '0' refers to non-purchase.

Using Jaquard's coefficient, find the similarity between Customer 1 and customer 2.

Using matching coefficient, find the similarity between Customer 3 and customer 4.