Suppose a certain species of fawns between 1 and 5 months old have a body weight that is approximately normally distributed with mean of 26 kilograms and standard deviation of 4.2 kilograms. What is the probability that a fawn will be less than 42.6 kilograms

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:

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-score is "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 problem

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:

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:

m a t h w a y. c o m

step-by-step explanation:

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%