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2 years ago

7

The average amount of ozone in several cities across Pennsylvania was correlated with the average number of asthma cases in thos

e cities. What type of study is this

1 answer:

bekas [8.4K]2 years ago

3 0

Answer:

Ecological study

Step-by-step explanation:

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3 years ago

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cupoosta [38]

3 are expected to have the condition.

The expected value is the found by multiplying the probability by the number in the sample:

(1/200)×600
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3 years ago

I forgot how to do this

adoni [48]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{1}}}}}$

Step-by-step explanation:

$\sf{ \frac{1}{2} \times 2}$

Multiply the numerators for the numerator and multiply the denominators for its denominator and reduce the fraction obtained after multiplication into lowest term.

$\dashrightarrow{ \sf{ \frac{1 \times 2}{2 \times 1} }}$

$\dashrightarrow{ \sf{ \frac{2}{2} }}$

$\dashrightarrow{ \sf{1}}$

Or, You can simply reduce the fraction with 2, which results to 1.

Hope I helped!

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3 years ago

What is the quotient of 2 ÷ 2/3?

Neko [114]

Answer:

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Step-by-step explanation:

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