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iris [78.8K]
3 years ago
15

According to a medical institution, about 44% of people from a certain country have type A blood. Suppose 80 people show up at a

typical blood drive.
What’s the expected proportion of people who are type A?
Mathematics
1 answer:
vesna_86 [32]3 years ago
8 0
Do 80 divided by 44%
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Step-by-step explanation:

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∫₀⁴ ½ f(u) du

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Giovanni had seven rows of trading cards each row had five cards then he added three new cards how many cars are there altogethe
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A local animal shelter has 27 dogs and 23 cats. What percent of the<br> animals are dogs?
SVEN [57.7K]

Answer:

54%

Step-by-step explanation:

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3 years ago
Below is the five-number summary for 144 hikers who recently completed the John Muir Trail (JMT). The variable is the amount of
bearhunter [10]

Answer:

The IQR is given by:

IQR = Q_3 -Q_1 = 28-18= 10

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Lower= Q_1 - 1.5 IQR

Upper= Q_3 + 1.5 IQR

And if we find the lower limt we got:

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Step-by-step explanation:

For this case we have the following 5 number summary from the data of 144 values:

Minimum: 9 days

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IQR = Q_3 -Q_1 = 28-18= 10

If we want to find any possible outliers we can use the following formulas for the limits:

Lower= Q_1 - 1.5 IQR

Upper= Q_3 + 1.5 IQR

And if we find the lower limt we got:

Lower= Q_1 - 1.5 IQR= 18-1.5*10 = 3

Upper= Q_3 + 1.5 IQR= 28+1.5*10= 43

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6 0
3 years ago
What is the quadratic regression equation that fits these data?
elena55 [62]

9514 1404 393

Answer:

  D.  y = -0.32x² -1.26x +15.81

Step-by-step explanation:

This is one of those multiple-choice questions where you only need a vague idea of what the answer is supposed to look like.

In this case the answer must be a quadratic equation with a negative leading coefficient. (The parabola opens downward.)

The only answer choice that is a 2nd degree polynomial with a negative leading coefficient is choice D.

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A: linear equation

B: exponential equation

C: quadratic that opens upward (positive leading coefficient)

D: quadratic that opens downward -- the answer you're looking for

4 0
3 years ago
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