A daycare program has an average daily expense of $75 the standard deviation is five dollars the owner takes a sample city for bills what is the probability the meaning of a sample be between 70 and $80.
Step 1:Calculate the z score for 70.
Step 2: Give the probability for step 1.
Step 3: Calculate the z score for 80.
Step 4: Give the probability for step 3.
Step 5: Add the probabilities from steps 2&4.