This is no longer simple random sampling, because some combinations of 100 students have a larger selection probability than others â for instance, {3, 13, 23, ..., 993} has a 1/10 chance of selection, while {1, 2, 3, ..., 100} cannot be selected under this method.
Definition of 'weather forecast'. weather forecast. A weather forecast is a statement saying what the weather will be like the next day or for the next few days.
Weather describes conditions in the atmosphere that are happening right now. It is the short term occurrence, or daily measurement, of fair or inclement weather. For dealing with weather, daily decisions are necessary. When it is raining, bring an umbrella; when it is stormy outside, take cover inside.