QUESTION 1 (25 MARKS)
The products and services offered by Metier Mixed Concrete range from standard ready mixed
concrete to highly specialised concretes, such as fibre-reinforced concrete, coloured concrete,
durability concrete or any other product designed specifically for the clients. Metier Mixed
Concrete that supplies ready-mix concrete receives, on average, four orders per day. Using this
information answer the following questions:
a. Which probability distribution is appropriate in this case? Why? (3)
b. What is the probability that no more than three orders will be received per day. Interpret
your findings. (7)
c. What is the probability that two or four orders will be received per day. Interpret your
findings. (3)
d. What is the probability that at least two orders will be received in a two-day period.
Interpret your findings. (7)
e. What is the probability that, on a given half-day, at most 2 orders will be received. Interpret
your findings. (5) answer and answer according to mark allocations
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