Question Which of the following scenarios contain biased samples? Select all that apply. Select all that apply: Ruth wants to estimate the mean height of students at her school. She collects data by selecting a random group of students within her classroom. Jennifer wants to estimate the mean amount of money spent on clothes per week by mall shoppers. She collects data from every 10 th person entering one clothing store at the mall. To estimate the mean number of classes that students take at his university, Raymond collects data from a randomly selected proportionate number of students from each grade level. To estimate the political party distribution of residents in his state, Patrick collects data from a large group of randomly selected residents of his city.

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