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kipiarov [429]
3 years ago
15

What is the scientific notation of 0.00277

Mathematics
1 answer:
pentagon [3]3 years ago
6 0
The answer is 2.77 • 10^3
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7x = 2 <br> what does x equal?
Ira Lisetskai [31]

Answer:

0.29

Step-by-step explanation:

7x=2

/7   /7

x=0.29

-hope it helps

8 0
2 years ago
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Leon bought 50 backpacks at a sporting store. 20% of the backpacks were pink and 1/2 of the backpacks were blue. How many of the
My name is Ann [436]

20% of 50 is 10

Half of 50 is 25

25 + 10 = 35

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3 years ago
Graph Photo attahed
BabaBlast [244]

North divided by Total  (Total of North, South, Central, East, and West)

North = 1

South = 4

Central = 2

East = 3

West = 2

North   ÷   Total

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  1      ÷      (12)

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Answer: B

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3 years ago
What is the difference between internal validity and external validity​? A. A statistical analysis is said to have external vali
Arada [10]

Answer:

B

Step-by-step explanation:

Internal validity means that it it valid for the population within the study internal = study). While external validity means that it has wider applications and is valid for people outside the study or in different setting. In other word, a statistical analysis has internal validity if the statistical inferences about causal effects apply for those being studied. It has external validity when if can be generalized to other settings and populations. The answer choice which best matches this is B.

Answer choices:

A. A statistical analysis is said to have external validity if the statistical inferences about causal effects are valid for the population being studied. The analysis is said to have internal validity if conclusions can be generalized to other populations and settings.

B. A statistical analysis is said to have internal validity if the statistical inferences about causal effects are valid for the population being studied. The analysis is said to have external validity if conclusions can be generalized to other populations and settings.

C. A statistical analysis is said to have internal validity if the statistical inferences about causal effects can only be verified by a few researchers. The analysis is said to have external validity if conclusions can be verified by many researchers.

D. Internal validity and external validity are equivalent.

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3 years ago
Hello Help me anyone​
tatuchka [14]

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helping me terror to hi how are u

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