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Alex_Xolod [135]
3 years ago
10

a researcher is studying the effects of playing chess on memory improvement. he identifies 50 people who play chess and 50 peopl

e who do not. each of the 100 people is given a questionnaire designed to determine memory level. none of the 100 people who participated in the study knew they were part of a study. which statement is true.
Mathematics
1 answer:
Sever21 [200]3 years ago
6 0

Answer:

Observational study

Step-by-step explanation:

Just took the test

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Enter the following in the cash book applying cgst and sgst at 6% each for all transactions relating to the sales and purchase o
Kobotan [32]

Answer:

10,000

Step-by-step explanation:

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4 0
3 years ago
Recall the following study: Over a 17-year period researchers studied a sample of 707 individuals from a single community. They
IgorC [24]

Answer:

Hence the answer is option c ; poverty and neighborhood conditions

Step-by-step explanation:

From the research, it is well known that both the dependent variable and independent variable will be taken into consideration before arriving at a conclusion.

A dependent variable is the variable that is been studied or measured i.e the results of a scientific research.

An independent variable is a variable that is been altered or controlled for and whose effects are compared to the results of the dependent variable, as such the results of  a dependent variable is dependent on the alteration of the parameters of an independent variable.

From the question ; the dependent variable is sample of 707 individuals from a single community while the independent variable ; the number of hours each individual spent watching television during adolescence and early adulthood.

The word confound in statistics implies a variable which has a greater effects on both the dependent and the independent variable.

Hence the answer is option c ; poverty and neighborhood conditions

7 0
4 years ago
Translation ill give points
Nimfa-mama [501]

Answer:

(-2,7) (3,5)

Step-by-step explanation:

hope it helps

6 0
3 years ago
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Can someone please tell me the answer to this?
matrenka [14]

Answer:

look at the picture ..........

6 0
3 years ago
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Need help fast Write the equation of the line in fully simplified slope-intercept form.
andre [41]

First we have to find the slope formula with the points (0,-7) and (-6,-2). Doing so, we have:

m=\frac{y2-y1}{x2-x1}=\frac{-2-(-7)}{-6-0}=\frac{-2+7}{-6}=\frac{5}{-6}=\frac{-5}{6}

We can see in the graph that the y-intercept is at (0,-7), therefore the equation would be:

y= mx + b (m:slope, b: y-intercept)

y= (-5/6)x - 7 (Replacing)

The answer is y= (-5/6)x - 7

8 0
2 years ago
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