The linear corelation between violent crime rate and percentage of the populatio
ID: 2948218 • Letter: T
Question
The linear corelation between violent crime rate and percentage of the population that has a cell phone s-0918 for years since 1995 Do you belove that increas percentage ofthe population tat has a cell phore wi dorease he vic ert crime rate? What tight be a hring variable between percentago on e wit a cell phone and violent crine rate? vva increasing the percentage ofthe populatinthat has a cea phone derease the vilert aime rate?Choose he best option below O Yes What might be a luarking variable between percentage of the population with a cell phone and violent crime rate O A the economy O B averall cell phone signal streng O C the average cell phone's effectiveness as a weapon O D. the police Ptan (Optic Cick to select your answer ALT
Explanation / Answer
Ans:
1)As correlation cofficient is negative,it means that with incresing percantage of population with cellphone will decrease the violent crime rate.
Correct option is Yes.
Police can be the lurking variable.
(A lurking variable is a variable that is not included as an explanatory or response variable in the analysis but can affect the interpretation of relationships between variables.)
2)Option A is correct.(r=-0.025 means that weak negative correlation)
(B and C have strong negative correlation and D has strong positive correlation.)
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