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3 years ago

15

Victoria is going to invest in an account paying an interest rate of 1.5% compounded quarterly. How much would Victoria need to

invest, to the nearest hundred dollars, for the value of the account to reach $3,300 in 13 years?

1 answer:

mamaluj [8]3 years ago

3 0

Answer: P = 2716.3448786 or about 2700

Step-by-step explanation:

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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 22

marin [14]

Answer: 4.27% of adults in the USA have stage 2 high blood pressure.

Step-by-step explanation:

Let x be a random variable that denotes a person with high blood pressure .

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Standard deviation: $\sigma=22$

Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.

The probability that an adult in the USA have stage 2 high blood pressure:

$P(x\geq160)=P(\dfrac{x-\mu}{\sigma}}\geq\dfrac{160-122}{22})\\\\=P(z\geq1.72)\ \ \ [z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(z$

Hence, 4.27% of adults in the USA have stage 2 high blood pressure.

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