Answer:
First start with the y-intercept at -2.
Then graph it three units to the right, then one unit down.
Step-by-step explanation:
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Answer: 0.1210
Step-by-step explanation:
Given : The length of country and western songs is normally distributed with 

Sample size : 
Let x be the length of randomly selected country song.
z-score : 

The probability that a random selection of 16 songs will have mean length of 158.30 seconds or less by using the standard normal distribution table will be
= 

Hence, the probability that a random selection of 16 songs will have mean length of 158.30 seconds or less is 0.1210