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Mkey [24]
3 years ago
12

Fill in the Blank: When evaluating an observational study, the four factors that should be reviewed are Introduction, Methodolog

y, Results, and _____________.
Mathematics
2 answers:
bonufazy [111]3 years ago
6 0
The correct term to fill in the blank would be   discussion. When evaluating an observational study, the four factors that should be reviewed are Introduction, Methodology, Results, and Discussion. In an observational study, the researcher cannot control the variables. The researcher wold draw some inferences from a set of sample without controlling anything.
notka56 [123]3 years ago
4 0

Answer:

Discussion- A

Step-by-step explanation:

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Please help! I’ll give brainliest!
anzhelika [568]

Answer:

y=3x+3

Step-by-step explanation:

the line doesnt connect with a negative so the first and third arent it. And the line cross's with a 3 not an x so the seconds on isnt the answer. Leaving the last one the answer.

5 0
3 years ago
Given that h(x) = 5-2x, find the value(s) of x when h(x) =3​
arsen [322]

Answer:

x=1

Step-by-step explanation:

We have,

h(x) = 5-2x

h(x)=3

Now,

h(x)=5-2x=3

or,5-2x=3

or,5-3=2x

or,2/2=x

Therefore, x=1 when h(x)=3

3 0
3 years ago
Read 2 more answers
SAT verbal scores are normally distributed with a mean of 433 and a standard deviation of 90. Use the Empirical Rule to determin
laila [671]

34% of the scores lie between 433 and 523.

Solution:

Given data:

Mean (μ) = 433

Standard deviation (σ) = 90

<u>Empirical rule to determine the percent:</u>

(1) About 68% of all the values lie within 1 standard deviation of the mean.

(2) About 95% of all the values lie within 2 standard deviations of the mean.

(3) About 99.7% of all the values lie within 3 standard deviations of the mean.

$Z(X)=\frac{x-\mu}{\sigma}

$Z(433)=\frac{433-\ 433}{90}=0

$Z(523)=\frac{523-\ 433}{90}=1

Z lies between o and 1.

P(433 < x < 523) = P(0 < Z < 1)

μ = 433 and μ + σ = 433 + 90 = 523

Using empirical rule, about 68% of all the values lie within 1 standard deviation of the mean.

i. e. ((\mu-\sigma) \ \text{to} \ (\mu+\sigma))=68\%

Here μ to μ + σ = \frac{68\%}{2} =34\%

Hence 34% of the scores lie between 433 and 523.

8 0
3 years ago
Jim walked 1/2 of a mile in 1/4 of an hour. at this rate how long will it take him to walk one mile
Kay [80]

Answer:

1/4=25 minutes an hour

25×2=50

it will take him 50 minutes

6 0
3 years ago
................................................<br>....
Dmitry_Shevchenko [17]

Answer:

HAVE A GOOD DAY :)))))))) <3

Step-by-step explanation:

5 0
3 years ago
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