Mathematics, 28.06.2020 03:01, wavy419

The brain volumes (cm cubed) of 20 brains have a mean of 1162.8 cm cubed and a standard deviation of 127.1 cm cubed. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1377.0 cm cubed be significantly high?

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answered: Guest

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 = $83.\overline3$

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥ $83.\overline3$

hope this !

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The brain volumes (cm cubed) of 20 brains have a mean of 1162.8 cm cubed and a standard deviation of...