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kondaur [170]
3 years ago
14

What goes to answer help

Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

1/1.27

Step-by-step explanation:

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3 years ago
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

Find the probability that the individual's pressure will be between 119.4 and 121.4mmHg

This is the pvalue of Z when X = 121.4 subtracted by the pvalue of Z when X = 119.4. So

X = 121.4

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

Z = \frac{121.4 - 120}{5.6}

Z = 0.25

Z = 0.25 has a pvalue of 0.5987

X = 119.4

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

Z = \frac{119.4 - 120}{5.6}

Z = -0.11

Z = -0.11 has a pvalue of 0.4562

0.5987 - 0.4562 = 0.1425

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

8 0
3 years ago
Malory spent $5 on a 16oz bag of wheat thins. At this rate, how much does it cost for 10 oz of wheat thins?
igomit [66]

Answer:

$3.13

Step-by-step explanation:

Get the price per oz:

5/16 = 0.3125

Multiply that by the amount of ozs you are looking to buy:

0.3125 x 10 = 3.125

Round to get your answer

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3 years ago
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C= 20-0.75x
c= 20-0.75(9)
c= 20-6.75
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Here c is the amount of change and x is the number of books bought.

The customer's change will be $13.25
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The area would be 19.625- inches
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