Please help answer this questions and can you double check the answers on the ones I have try to answer thank you

Week 15: Practice Final Score: 58186 24232 answered Progress saved Done ' OI. . Question 21 v c. What is the probability that the average of 40 classes will end with the second hand between 23 and 31 Week 15: Practice Final Score: 58186 24232 answered Progress saved Done ' OI. . Question 14 v El/ 4 pts '01 Z 99 0 Details 82% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal places. If 43 owned dogs are randomly selected, find the probability that a. Exactly 36 of them are spayed or neutered. 0.1557 b. At most 37 of them are spayed or neutered. 0.8108 c. At least 37 of them are spayed or neutered. 0.3235 d. Between 34 and 42 (including 34 and 42) of them are spayed or neutered. Week 15: Practice Final Score: 58786 24732 answered Progress saved Done ' 0.. 0 Question 16 v E 5 pts '0 1 Z 99 O Details Suppose that the speed at which cars go on the freeway is normally distributed with mean 76 mph and standard deviation 5 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(- -) b. If one car is randomly chosen, find the probability that it is traveling more than 74 mph. 0.6554 c. If one of the cars is randomly chosen, find the probability that it is traveling between 79 and 82 mph. d. 83% of all cars travel at least how fast on the freeway