Even though more money was removed out of stock funds in July as in any month since October 1987, sales of fund shares in July were not as low as an industry trade group had previously estimated.
During that period, the UN's Food and Agriculture Organisation estimates the number of hungry people in the world rose from about 800 million to more than 1 billion.
Consensus Action on salt and Health (Cash) estimates that at least 15,000 people in the UK die early each year as a result of eating too much salt, most of which is consumed through processed foods.
For example, a company may be able to estimate accurately the aggregate number of shoes it will sell, but it may be uncertain about which specific types of shoes will sell more than other types.