What type of relationship occurs when two variables both increase or decrease together

Point estimate = 0.25

Step-by-step explanation:

Complete question

Calculate the point estimate

Solution

Let A represents the number of adult males who smoke cigarettes

Calculation of 95% confidence interval for proportion of adult males who smoke cigarettes

,

Point estimate

Adding the above given equations we get -

2 * p = 0.50

p = 0.25