Answer: C.-1.5
Step-by-step explanation:
Given: The burning time of a very large candle is normally distributed with mean
of 2500 hours and standard deviation
of 20 hours.
Let X be a random variable that represent the burning time of a very large candle.
Formula: 
For X = 2470

So, the z-score they corresponds to a lifespan of 2470 hours. =-1.5
Hence, the correct option is C.-1.5.
Start by multiplying 24*5 (PEMDAS)
24*5= 125
125-41=84
Answer:
0.2
Step-by-step explanation:
Since it goes by thousandths (0.001), we can say the values are 2.089 and 2.095.
Answer:
7/20
Step-by-step explanation:
because it is 2 minutes of news for every/ 20 minutes of music.