S. [-/3.54 Points] DETAILS BBUNDERSTAT12 5.2.016 MLS. MY NOTES ASK YOUR TEACHER Richard has just been given a 8-question multiple-choice quiz in his history class, Each question twiis tive answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the arivers. Assuming that Richard guesses on all eight questions, find the Indicated probabilities. (Round your answers to three decimal places.) 14 USE SALT () What is the probability that he will answer all questions correctly? (b) What is the probability that he will arower all que (c) What is the probability that he wil answer at least one of the questions correctly? Compute this probability to ways. First, use the rule for mutually exclusive everts and the probabilities shown in the binomial probability distribution table Then use the fact that P( 2 1) - 1 - PV = 0). Compare the two results. Should they be equal? Are they exist? if not, how do you account for the difference? They should not be equal, but are equal They should be equal, but may differ stiftly due to rounding error They should be squal, but offer substantially, They should be squat, but may not be due to table error (4) What is the probability that Richard will answer at leand hail the questions correctly? 6 1-/3.34 Points] DETAILS BRUNDERSTAT125.2817 MALS MY NOTES ASK YOUR TEACHER Before 1918, approximately 90's of the wolves in a region were male, and 69% were female, However camile rarichers in this area have made a determined effort to exterminate wolves. From 1918 to the present, approximately 85% of wolves in the region are male, and 39%% are female, Biologists suspect that maile wolves are more likely than females to return to art area where the population has been greatly reduced. (Round your answers to three decimal places.) 14 USE SALT () Before 1918, in a random sample of 12 wolves spotted in the region, what is the probability that 9 or more were male? What is the probability that " or more were female? What is the probability that fewer then & were female? (b) for the period from 1918 to the present, in a random sample of What is the probability that 9 or more were female? What is the probability that fewer than & were female