a. Let be a random variable representing the weight of a ball bearing selected at random. We're told that
, so
where . This probability is approximately
b. Let be a random variable representing the weight of the
-th ball that is selected, and let
be the mean of these 4 weights,
The sum of normally distributed random variables is a random variable that also follows a normal distribution,
so that
Then
c. Same as (b).
With the exception of the form f(x) = ax + b, non-linear graph equation can take any form.See graph in photo attached.
<h3>What is non linear function and its graph?</h3>As the name suggests, a nonlinear function is one that is NOT linear.
To put it another way, a nonlinear function's graph is not a linear. In other words, its graph is not limited to being a line.
Any function whose graph is not a straight line should be considered a nonlinear function since a nonlinear function is one that is NOT linear.
Since none of the graphs in the following figure are straight lines, they all illustrate nonlinear functions.
Learn more about non-linear graph here:
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