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BabaBlast [244]
3 years ago
13

A cohort study was conducted to study the association of coffee drinking and anxiety in a population-based sample of adults. Amo

ng 10,000 coffee drinkers, 500 developed anxiety. Among the 20,000 non-coffee drinkers, 200 cases of anxiety were observed. What is the relative risk of anxiety associated with coffee use?
Mathematics
1 answer:
azamat3 years ago
6 0

Answer: Relative risk of anxiety associated with coffee use is 5 times the anxiety associated with non coffee use.

Step-by-step explanation:

Since we have given that

Number of coffee drinkers = 10000

Number of whom developed anxiety = 500

Number of non coffee drinkers = 20000

Number of whom developed anxiety = 200

So, probability of getting anxiety from coffee drinkers = \dfrac{500}{10000}=0.05

Probability of getting anxiety from non coffee drinkers = \dfrac{200}{20000}=0.01

so, Relative risk of anxiety associated with coffee use is given by

\dfrac{0.05}{0.01}=5

Hence, Relative risk of anxiety associated with coffee use is 5 times the anxiety associated with non coffee use.

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Differentiate x^2 e^x logx
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8 0
3 years ago
1. Find the area of the polygon
zhannawk [14.2K]

Answer:

1. A = 40 units²

2. A = 72 units²

3. B) 45

Step-by-step explanation:

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Area of a triangle = 1/2 x base x height

Therefore, area of polygon = 4(1/2 x 5 x 4)

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2.  This shape comprises two pairs of congruent triangles.

Area of a triangle = 1/2 x base x height

Therefore, area of polygon = 2(1/2 x 2 x 6) + 2(1/2 x 10 x 6)

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3.  Count the number of shaded squares:

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7 0
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Answer:

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Here it is just simplifying the inequality.

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x > 9.

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