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Sergio [31]
3 years ago
12

Corey has 4929 songs in his​ computer's music library. the lengths of the songs have a mean of 242.4 seconds and standard deviat

ion of 114.51 seconds with the accompanying normal probability plot of song lengths. complete parts​
a.and​
b.below. loading... click the icon to view the normal probability plot of song lengths. ​a) is this distribution​ normal? explain.
a. ​yes, because there is a curved pattern to the plot.
b. ​no, because there is no pattern to the plot.
c. ​no, because the plot is not roughly a diagonal straight line.
d. ​yes, because the plot is roughly a diagonal straight line. ​b) if it​ isn't normal, how does it differ from a normal​ model?
a. the distribution is skewed to the left.
b. the distribution is skewed to the right.
c. the distribution is uniform.
d. the plot is normal.

Business
1 answer:
expeople1 [14]3 years ago
4 0

Answer:

a. d. ​yes, because the plot is roughly a diagonal straight line

b. b the distribution is skewed to the right.

Explanation:

Note: Find attach the plot as picture

a. If the distribution of the song length is roughly Normal, the normal probability plot should be roughly a diagonal straight line. But the given normal probability plot is far from straight. So, the distribution of song lenghts is not normal

b. The distribution of song lenghts is skewed to the higher values, that is right skewed because the normal probability plot is curved and of inverted C shape

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