Help what is −3 3/4×5/6−2 1/3

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41