ANSWER ASAP/ANSWER THROUGHLY PLEASE a.) b.) c.) A finance journal published a st

Question

ANSWER ASAP/ANSWER THROUGHLY PLEASE

a.)

b.)

c.)

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 155,002 adults 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 155,002 citizens is selected at random. Complete parts a through f EEB Click the icon to view the Finnish investment and IQ data 6 Data Table a. What is the probability that the Finnish citizen invests in the stock market? The probability is (Round to the nearest thousandth b. What is the probability that the Finnish citizen has an IQ score of 6 or higher? The probability is (Round to the nearest thousandth as needed.) c. What is the probability that the Finnish citizen invests in the stock market and has an IQ score of 6 or higher? The probability is (Round to the nearest thousandth as needed.) d. What is the probability that the Finnish citizen invests in the stock market or has an IQ score of 6 or higher? The probability isRound to the nearest thousandth as needed.) e. What is the probability that the Finnish citizen does not invest in the stock market? The probability is Round to the nearest thousandth as needed.) f. Are the events (Invest in the stock market) and I score of 1 mutually exclusive? as needed.) Invest in IQ Score Totals Marke Investment 4,617 9,377 9,564 18,574 23,632 21,389 10,979 7,142 5,245 110,519 836 1,380 1,902 5,366 8,433 10,054 6,907 5,008 4,597 44,483 5.453 10.757 11.466 23.940 32.065 31,443 17,886 12.150 9.842 155,002 Totals Pint Done Click to select your answer(s).

Explanation / Answer

a) P(Invest in the stock market)= Investments/ Total= 44483/155002 = 0.286983

b)P(IQ score is 6 or higher)= Total 6 or higher /Toal number= 71321 / 155002 = 0.46013

c) P( Invests and Has 6 or higher IQ) = Invest or 6 or higher/ total = 26566 / 155002 = 0.171391

d) P( Invests and Has 6 or higher IQ) = P(Invest) +P( IQ 6 or higher) - P( Invest and IQ 6 or higher)

P( Invests and Has 6 or higher IQ)= 0.286983+0.46013- 0.171391= 0.575722

e) P(No invest) = No invest / Total =110519 / 155002 = 0.713017

f) {Invest in stock market} and { IQ 1}:

No, they are not mutually exclusive. becasue there are finish students who invest in the stock market and have an IQ score of 1.

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