Answer:
21.16
Step-by-step explanation:
Starting from the theory we have the following equation:
Using the data supplied in the exercise, we have subtracting the mean and dividing by the standard deviation:
solving for "c", knowing that fi is a tabulating value:
therefore the value of c is equal to 21.16
129 degrees you just add DCE and ECF together
Answer:A
Step-by-step explanation:
5/6, use this method next time another question comes up