Mathematics, 08.11.2020 04:50 candancejc8942
How many of the following statements is/are correct?
-Two variables are said to be confounded when their effects on the response cannot be separated
-The purpose of an observational study is to avoid confounding and to establish causation
- A specific set of experimental conditions applied to the units is called a treatment.
-Matched pairs design is one of the simple and common type of observational studies.
Select one:
a. 3
b. 0
c. 2
d. 4
e. 1
Answers: 1
Mathematics, 21.06.2019 22:00, nshuey0930
Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4
Answers: 2
Mathematics, 22.06.2019 01:20, lillyd2873
The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!
Answers: 1
Mathematics, 22.06.2019 03:00, eboniwiley
Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?
Answers: 2
How many of the following statements is/are correct?
-Two variables are said to be confounded when...
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