John wants to find out what people in a city think of exercise.
He selects a park in the city at random and surveys 10 joggers.
Select two ways of his method of sampling is biased.
He has asked too many people
He only asked people in the park
He only asked people who were exercising
He made it too difficult for people to answer
He only asked people who volunteered
The two ways his method of sampling is biased are:
1. He only asked people in the park: This method may not provide a representative sample of the entire city's population as not everyone who exercises may visit the park. It excludes individuals who exercise in other locations or who do not have access to the park.
2. He only asked people who were exercising: By selecting only joggers, John's survey would only reflect the opinions of those who are already engaged in exercise activities. This may not capture the opinions or attitudes of individuals who do not exercise regularly or have different preferences for physical activities.