## The golf scores for a school team were normally distributed with a mean of 68 and a standard deviation of three. What the probability that a

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Answer:And we can find this probability using the normal standard table or excel and we got:

Step-by-step explanation:Previous concepts

Normal distribution, is a “probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean”.The

Z-scoreis “a numerical measurement used in statistics of a value’s relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean”.Solution to the problemLet X the random variable that represent the golf scores of a population, and for this case we know the distribution for X is given by:

Where and

We are interested on this probability

And the best way to solve this problem is using the normal standard distribution and the z score given by:

If we apply this formula to our probability we got this:

And we can find this probability using the normal standard table or excel and we got:

We can use the following excel code to find it: “=NORM.DIST(-1,0,1,TRUE)”