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Mice21 [21]
3 years ago
12

Identify the type of observational study described. A statistical analyst obtains data about ankle injuries by examining a hospi

tal's records from the past 3 years. cross-sectional retrospective prospective
Mathematics
1 answer:
spin [16.1K]3 years ago
8 0

Answer: Retrospective

Step-by-step explanation:

A retrospective observational study which is used in medical and psychological research by checking historic records .

This study looks backwards in history to examine exposures to suspected risk or protection factors in relation to an outcome that is considered at the beginning of the study.

The given statement says that  A statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years.

Hence, this is a retrospective observational study.

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Marianna [84]

Answer:

408 Cars

Step-by-step explanation:

Dividing 12 Hours by 1.5 hour

= 12/1.5 = 8

Now Multiplying 8 by 51

=51 x 8

= 408 cars  

7 0
3 years ago
8. 3(4x + 4) + (x + 8) = 7x – 2(-3x + 11) Find the value of x
Marina86 [1]

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3 0
3 years ago
Tolong bantuin pakai cara ​
Mama L [17]

Answer:

1364

Step-by-step explanation:

1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843, 1364

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1+3 =4

3+4 =7

4+7=11

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7 0
3 years ago
This circle is centered at the origin, and the length of its radius is 2. What is
Jlenok [28]

Answer:

B. X4+ y= 4

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Step-by-step explanation:

7 0
3 years ago
What is the equation for the (graph) line? (please help)
zvonat [6]

Answer:

y = 8x

Step-by-step explanation:

The equation for any straight line is y= bx + c

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