Answer :
Answer: 5 days
Step-by-step explanation:
To solve this problem, we need to find the number of days when the midday temperature was between 39°C and 42°C, assuming a normal distribution.
Given information:
Mean midday temperature in June: 36°C
Standard deviation: 3°C
Number of days in June: 30
Step 1: Convert the temperature range to z-scores.
z-score for 39°C = (39 - 36) / 3 = 1
z-score for 42°C = (42 - 36) / 3 = 2
Step 2: Find the probability of the temperature being between 39°C and 42°C.
Probability = P(1 ≤ z ≤ 2)
Using a standard normal distribution table or calculator, the probability is approximately 0.1587.
Step 3: Calculate the number of days when the temperature was between 39°C and 42°C.
Number of days = 30 × 0.1587 = 4.761 days
Since the question asks for the number of days, the correct answer from the drop-down menu is 5 days.
Answer:
you can't do that because if you take all that add it up makes no sence