Astudy of several cities shows a positive correlation between the number of churches and the city’s crime rate. which of the following explains this relationship? a. more churches lead to more crimes b. people who commit crimes need to go to church c. the correlation is due to a third variable: population d. people are afraid of crimes, so they go to church.

Answer-

A. More churches lead to more crimes

Solution-

Properties of Correlation Coefficient

1- A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.

2- A negative correlation means that if one variable gets bigger, the other variable tends to get smaller.

Here,there is a positive correlation between the number of churches and the  city’s crime rate. So as the number of churches increase, the crime rate also gets increased.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315