I am having a difficult time with these practice problems. Any help would be greatly appreciated! TIA!

Find the mean of the sampling distribution of sample means using the given information. Round to one decimal place, if necessary. # = 78 and ( = 14; n = 81An Australian Shepherd breeder has had three litters of puppies from the same set of parents. The following table shows the results from the three litters. In the next litter, what is the probability of a puppy having spots? Enter a fraction or round your answer to 4 decimal places, if necessary. Number of Puppies Black and White Red and White Black with Spots Red with Spots 4 9 8 6