[James]

The Channel 4 poll is unreliable as evidenced by the current results.

Gamblers don't always bet on something they feel is the favourite. If they think the bookmaker has misjudged the odds of a housemate, they might not win the bet but they would be in profit over several such bets.

It would cost £25,000 for every 100,000 calls to an eviction number. The winning margins in most of the evictions last year were at least 300,000-400,000. Sometimes it was the best part of a million. The eviction this year where the gap was only 1000 was a freak result and could not be predicted anyway.