Do you think global warming will have an impact on you during your lifetime? A poll of 1,000 adults asked this question. Consider the responses by age groups shown below. Response Age 18–29 30+ Yes 140 287 No 137 426 Unsure 8 2   (a) What is the probability that a respondent 18–29 years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.)   (b) What is the probability that a respondent 30+ years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.)

The following frequency table summarizes how many animals are surrendered to a local animal shelter daily.  Dogs 6 Cats 13 Rabbits 4 Birds 2 Using experimental probability, what is the probability that a cat will be surrendered tomorrow? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

3. Data collected from a website show that 60% of visitors use Scavenger as their web browser. You randomly select 100 visitors from the website. What is the probability that at most 55 of the visitors use Scavenger? Round your answer to the nearest tenth of a percent. Answer choices: 91.7% 60.0% 55.0% 17.9%

A survey asked teens in the seventh through twelfth grade to estimate the likelihood that they would be married within ten years. The responses are tabulated below.      Female   Male   Total Less than 50%  502 522  1024 At least 50%  2154 1699  3853 Total  2656 2221  4877 What is the probability that a randomly selected study participant believes that the probability that he or she will be married within ten years is less than 50%? Round your answer to four decimal places.