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Sliva [168]
3 years ago
13

The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds

. If a college football player is randomly selected, find the probability that he weighs between 170 and 220 pounds.
Mathematics
1 answer:
belka [17]3 years ago
8 0

Answer:

P(170

And we can find this probability with this difference:

P(-0.6

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(200,50)  

Where \mu=200 and \sigma=50

We want to find the following probability:

P(170

And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

And using this formula we got:

P(170

And we can find this probability with this difference:

P(-0.6

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