In a study, 42% of adults questions reported that their health was excellent. a researcher wishes to study the health of people living close to a coal power plant. among the 14 adults randomly selected from this area, only 3 reported that their health was excellent. find the probability that when 14 adults are randomly selected from the full population, only 3 or fewer report having excellent health.

0.0594

Step-by-step explanation:

Given : The population proportion of adults questions reported that their health was excellent : p = 0.42

Among the 14 adults randomly selected from this area, only 3 reported that their health was excellent.

i.e. Sample size : n= 14

z-score :

Put x= 3

Then, the probability that only 3 or fewer report having excellent health:-

Hence, the required probability : 0.0594

i am unable to solve this problem

step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads