Sorry I can’t see the full problem try reposting it
The interest received on a dollar invested over time is called Return on Investment (ROI
<h3>Return on Investment</h3>
It should be noted that if the dollar received today is not put into good investment it might as well be the same as the dollar received in future.
Money losses value overtime hence in other for money to have values it should be invest carefully and wisely.
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brainly.com/question/1305349
In Statistics, when you are is using the standard normal distribution, P(z < 0) = 0.5.
<h3>What is a normal distribution?</h3>
A normal distribution is also referred to as the Gaussian distribution and it can be defined as a probability distribution that is continuous and symmetrical on both sides of the mean, which shows that all data near the mean have a higher frequency than data that are far from the mean.
This ultimately implies that, when you are is using the standard normal distribution, P(z < 0) must be equal to 0.5 because it has a median of zero (0).
Read more on normal distribution here: brainly.com/question/4637344