Imaginary number of √-25 someone HELP

Mathematics

1 answer:

Rufina [12.5K]3 years ago

5 0

Answer:

Note that i= √-1 so you say √-25=√25i so the answer is 5i

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Answer:

$P(\bar X$

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".

Let X the random variable that represent interest on this case, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$