The standard deviation is 1.43 below the mean
<h3>How to determine the number of standard deviation?</h3>
The given parameters are:
Mean = 98.249
Standard deviation = 0.733
x = 97.2
To calculate the number of standard deviation below the mean, we use

So, we have:

Evaluate the like terms

Divide both sides by -0.733
n =1.43
Hence, the standard deviation is 1.43 below the mean
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Answer
The last one
y+2=-(x+8)
9x-7=-7
9x=o
x=0
so the answer....is 0
According to his calculations, b has a 3/10 chance to win
The unknown shape could be a rectangle, parallelogram, or kite.
:)