A bit-string is a binary digit sequence (bits). The length of the value is the number of bits in the sequence. A null string is a bit-string with no length. And how many bit strings of length 10 contain exactly four 1s

How many bit strings of length 10 contain exactly four 1s

This just asks us to pick four out of ten places in which to put one.

F.A.Q: How many bit strings of length 10 contain exactly four 1s

What is the length of a ten-bit string?

There are ten locations in the bit strings: 1, 2,…, 10. A 3-subset of the digits 1, 2,…, 10 may be expressed as a bit string with precisely 3 0s. These are the bits where the 0s are placed.

How many n-bit strings have exactly r 1s in them?

As a result, C(n,r) bit strings of length n contain precisely r 1s.

How can you figure out how long a string’s bits are?

A bit string is a collection of 0s and 1s. “00101” and “11110,” for example, are 5-bit strings. There are two methods to pick the first bit for length 8, two ways to select the second,… So, for length 8, there are a total of 288=256 options.

How much is a bit worth?

A bit is 12.5 cents or 1/8 of a dollar. You may deduce it from the context as well. Two bits, four bits, six bits, and a dollar. That implies they’re talking about 25 cents, 50 cents, 75 cents, and a dollar in that order.