In a study of a random sample of 1739 adults from Nova Scotia, Canada, researchers interviewed each participant and, among other variables, assessed their attitude using a formal psychological survey. It was found that adults who had a more positive attitude were less likely than their peers to have coronary heart disease over a 10-year period. Based on this study, is it reasonable to conclude that a positive attitude causes a decrease in the risk of coronary heart disease in adults in Nova Scotia?

easy math just plug in a and b

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5