Posted: November 9th, 2016

An IQ score (from a low score of 1 to a high score of 9) was determined for each Finnish citizen as well as whether or not the citizen invested in the stock market.

A finance journal published a study of whether the decision to invest in the stock market is dependent on IQ. Information on a sample of 150,875adults living in Finland formed the database for the study. An IQ score (from a low score of 1 to a high score of 9) was determined for each Finnish citizen as well as whether or not the citizen invested in the stock market. The following table gives the number of Finnish citizens in each IQ score/investment category. Suppose one of the 150,875citizens is selected at random. Complete parts a through f.