Manufacturing and Product Development
A standard Versa-lok block used in residential and commercial retaining wall systems has mean weight 37.19 kg.8 Assume the standard deviation is 0.8 kg and the distribution is approximately normal. A standard block unit is selected at random.
a. What is the probability that the block weighs more than 38 kg? Write a Solution Trail for this problem.
b. What is the probability that the block weighs between 36 and 37 kg?
c. If the block weighs less than 35.5 kg, it cannot be used in certain commercial construction projects. What is the probability that the block cannot be used?