It appears that the question is incomplete but the answer to the part given is as below.
Answer:
(a) 0.0313
Step-by-step explanation:
In a normal distribution curve, the mean divides the curve into two equal parts. Hence, the probability of being lesser or higher than the mean is 1/2. This is the probability for a single day.
From the question, the probability of a day is independent of that of another day. For 5 days, the probability is
[tex](\frac{1}{2})^5 = 0.5^5 = 0.03125 = 0.0313[/tex] to 3 significant digits.
