Indicate whether the following statements are True (T) or False (F).

1 answer:

4 0

1. False because a rational is a fraction or part of a number ( $\frac{3}{2}, 3.2$ ). $\sqrt{49} = 7$

2. True; a real number is any number that isn't imaginary ( $i, \sqrt{-1}$ )

3. True; same reason

4. True; an integer is any number that can be wrote without a fraction or decimal (the opposite of rational).

5. True; $\sqrt{3} \approx 1.32$ and that's a decimal.

6. True; the natural number system starts from 0 and counts upwards

7. True; reason above

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Systolic Blood Pressure Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury and the stan

liq [111]

Answer:

0.1425 = 14.25% probability that the individual's pressure will be between 119.4 and 121.4mmHg.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 120, \sigma = 5.6$