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timofeeve [1]
3 years ago
15

Your dad is 73.5 inches tall. You are 2.5 inches shorter than your dad. Your mom is 3.25 inches shorter than you. How tall is yo

ur mom?
Mathematics
2 answers:
tatuchka [14]3 years ago
5 0
Your mom is 67.75 inches tall 
alex41 [277]3 years ago
3 0

Answer: My mom's height is 67.75 inches.

Step-by-step explanation:  Given that my dad is 73.5 inches, I am 2.5 inches shorter than my dad. My mom is 3.25 inches shorter than me.

We are to find the height of the mom.

Since  I am 2.5 inches shorter than my dad, so my height will be

h_m=73.5-2.5=71~\textup{inches}.

Now, my mom is 3.25 inches shorter than me, so my mom's height is

h_{mom}=71-3.25=67.75~\textup{inches}.

Thus, my mom is 67.75 inches tall.

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Step 2:

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Standard\text{ Deviation}=\sqrt{\sum_{i\mathop{=}0}^3(x_i-\mu)^2P_(x_i)}=(0-2)^2(0.25)+(1-2)^2(0.05)+(2-2)^2(0.15)+(3-2)^2(0.55)=4(0.25)+1(0.05)+0(0.15)+1(0.55)=1+0.05+0+0.55=1.60

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Answer:

1.60

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