If you look at the truth table head head, head tail, tail head, and tail tail these are the four possible outcomes.

On this side remember, you're excited about head tail tail you're excited about head tail head.

Head tail head overlaps itself.

You can't do that with head tail tail.

There's a connection between head tail heads and head tail tails in genetics, and it's the following.

Who thinks that A is true that, on average, it'll take longer to see head tail head than head tail tail?

In fact, the average number of tosses till head tail head is 10 and the average number of tosses until head tail tail is eight.

Who thinks that C is true that, on average, it'll take less time to see head tail head than head tail tail?

The other half of the audience doesn't like head tail tail they think, for deep cultural reasons, that's boring and they're much more interested in a different pattern head tail head.

If you went head tail head tail head, you can cunningly get two occurrences of the pattern in only five tosses.

Here's one a head, followed by a tail, followed by a tail.

We have eight equally likely possibilities, and the tail, head, tail is exactly one of them.

I can't make head nor tail of it.

Then the pattern, head tail tail, that we've suddenly become fixated with happens here.

So what you want to do is compare the average number of tosses until we first see head tail head with the average number of tosses until we first see head tail tail.

Another way of thinking about it if we tossed a coin eight million times, then we'd expect a million head tail heads and a million head tail tails but the head tail heads could occur in clumps.

I can't make head or tail of those directions.

And you count the number of times until the pattern head tail head appears and you average them.

I can't make head or tail of what you say.

On this side, you've got a number the average number of tosses until head tail head.

I can't make head nor tail of her lecture on health and physical education.

Imagine this half of the audience each get out coins, and they toss them until they first see the pattern head tail tail.

I could get a head on the first flip and a head on the second flip, head on the first flip, tail on the second flip,

In bigger systems, the head gets bigger and the tail gets longer, so the imbalance increases.

His handwriting is very poor, I cannot make head or tail of it.

Better be the head of a cat than the tail of a lion.

Better be the head of a dog than the tail of a lion.

Better be the head of a cat than the tail of a lion.

Better to be the head of a dog than the tail of a lion.

I don't understand the problem I could make neither head nor tail of it.

I don't understand the problem I could make neither head nor tail of it.

I now need to observe just the cases where head is followed by tail.

tail

I do not understand the problem I could make neither head nor tail of it.

Mrs. Hall listened conscientiously she could make neither head nor tail of what she heard.

For example, these are heads, tail, tail.

Curly tail?

Revolving tail?

He turned his tail and ran.

There were two coin flips flip 1 and flip 2 and each had a possible outcome of heads, heads heads, tails tail, heads and tail, tail.

You're a little bit excited with the first head you get rather more excited with the next tail.

So on this side, you've got a number you've done it lots of times, so you get it accurately which is the average number of tosses until head tail tail.

And they do it with their tail.

It had the head of a woman, the body of a lion, the wings of a bird, and the tail of a serpent.

Tail heads is 25 .