Are standardized scores and z-scores the same thing?.

Mathematics

2 answers:

tatyana61 [14]2 years ago

4 0

Answer:

Yes

Step-by-Step

Z-scores are also known as standardized scores. They are scores that have been given a common standard

Vika [28.1K]2 years ago

3 0

Answer:

Yes and Yes

Step-by-step explanation:

Simply put, a z-score (also called a standard score) gives you an idea of how far from the mean a data point is. But more technically it's a measure of how many standard deviations below or above the population mean a raw score is. A z-score can be placed on a normal distribution curve.

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The switchboard in a Minneapolis law office gets an average of 5.5 incoming phone calls during the noon hour on Mondays. Experie

trasher [3.6K]

Answer:

2.35 calls

Step-by-step explanation:

The presented scenario can be modeled by a Poisson distribution with an average number of calls (μ) of 5.5 during the noon hour on Mondays.

Therefore, the standard deviation for the number of calls received, X, is given by:

$\sigma =\sqrt \mu\\\sigma =\sqrt5.5\\\sigma =2.35\ calls$