Answer: 
Step-by-step explanation:
Given
The temperature in Canada at 6 am on Christmas was 
By noon the temperature had risen by 
So, the temperature in Canada at noon is
Answer:
This statement is False though...
Answer:
1
Step-by-step explanation:
The acute angle is 3 degrees
Answer:
The probability is 82.64, Given this probability, lights should be installed because they exceed the 80% limit.
Step-by-step explanation:
according to the exercise we can have the data that
the number of accidents per year = 234
then we will look for the number of accidents per week obtaining:
234/52 = 4.5
the probability that more than 2 accidents will occur at most would be
p (x> 2) = 1-p (x <= 2)
replacing the data we get that
1- (p (x = 0) + p (x = 1) + p (n = 2))
= 1-0.1736 = 0.8264
we convert to a percentage and the answer is 82.64%
Given this probability, lights should be installed because they exceed the 80% limit.
