Greg's points per basketball game are normally distributed with a standard deviation of 4 points. If Greg scores 43 points, and the z-score of this value is 4, then what is his mean points in a game? Do not include the units in your answer. For example, if you found that the mean is 33 points, you would enter 33.

Respuesta :

Using the normal distribution, it is found that his mean number of points in a game is of 27.

Normal Probability Distribution

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

  • It measures how many standard deviations the measure is from the mean.
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem, we have that the parameters are as follows:

[tex]\sigma = 4, X = 43, Z = 4[/tex].

We have to solve for the mean [tex]\mu[/tex], hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]4 = \frac{43 - \mu}{4}[/tex]

[tex]43 - \mu = 16[/tex]

[tex]\mu = 27[/tex]

His mean number of points in a game is of 27.

More can be learned about the normal distribution at https://brainly.com/question/24663213