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Neko [114]
3 years ago
9

Aiden spins the spinner shown 20 times. His results are shown in the table. What are the experimental and theoretical probabilit

ies for spinning red? A) experimental = 3/4 , theoretical = 1/4 B) experimental = 1/4 , theoretical = 3/4 C) experimental = 1/4 , theoretical = 3/20 D) experimental = 3/20 , theoretical = 1/4
Mathematics
1 answer:
harkovskaia [24]3 years ago
5 0

Answer:D

Step-by-step explanation:

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0.00012 in scientific notation
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1.2⋅10  

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2 years ago
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1. Suppose that 35% of all patients admitted to a hospital's intensive care unit (ICU) have high blood pressure, 42% have some s
Lelechka [254]

Answer:

a) 65%

b) 28.57%

Step-by-step explanation:

Suppose that 35% of all patients admitted to a hospital's

intensive care unit have high blood pressure, 42% have some sort of infection, and 12% have both problems. Probabilities estimated from the data in ICU Admissions. (10POINTS)

 (a)  Find the probability that a randomly chosen patient in this ICU has either high blood pressure or an infection.

 (b)  Find the probability that a patient admitted to the ICU has high blood pressure given that an infection is present.

Solution:

Let H represent the people with high blood pressure and I represent the people with infection.

P(H) = 35% = 0.35, P(I) = 42% = 0.42, P(H ∩ I) = 12% = 0.12

Those with only high blood pressure = P(H ∩ I') = P(H) - P(H ∩ I) = 0.35 - 0.12 =0.23

Those with only infection = P(H' ∩ I) = P(I) - P(H ∩ I) = 0.42 - 0.12 =0.30

a) probability that a  patient has either high blood pressure or an infection = P(H ∪ I)

P(H ∪ I) = P(H ∩ I') + P(H' ∩ I) + P(H ∩ I) = 0.23 + 0.3 + 0.12 = 0.65 = 65%

b) probability that a patient has high blood pressure given that an infection is present = P(H / I)

P(H / I) = P(H ∩ I) / P(I) = 0.12 / 0.42 = 0.2857 = 28.57%

4 0
2 years ago
Enter the correct answer in the box
kakasveta [241]

Answer:

Step-by-step explanation:

Invert and multiply the second fraction.

\frac{x^2 - 2x}{x^2 - 10x + 25} *\frac{x^2 - 25}{6x^2 - 12x}

All 4 parts of the two fractions can be factored into simpler factors.

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Numerous cancelations can occur

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  • (x - 2) [top left with x - 2 bottom right]

Answer

\frac{x}{(x -5)} * \frac{(x + 5)}{6}

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2 years ago
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