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ryzh [129]
3 years ago
13

"I heard that paper read yesterday that all are born equal." -Elizabeth Freeman, former slave in Massachusetts

Social Studies
2 answers:
Nat2105 [25]3 years ago
7 0
B) declaration of independence
mihalych1998 [28]3 years ago
6 0
B.) Declaration of Independence
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Dr. Rodriguez was interested in how quickly students help someone who has fallen and who was perceived as having a health proble
Aleonysh [2.5K]

Answer:

Kindly check explanation

Explanation:

Given the data :

Person perceived as having health problem

No witnessing fall _____ secs it takesto respond

1 _______________25

3 ______________ 60

5 ______________ 180

Person perceived as not having health problem

No witnessing fall _____ secs it takesto respond

1 _______________90

3 ______________ 180

5 ______________ 360

A.)

The dependent variable, also the predicted variable is 'how quickly students respond to the person who fell'

The Independent variable refers to the predictor variable which influences the outcome of the dependent variable. The independent variables are ;

Number of students in the room ;

Perception of health problem in the person who fell.

2.)

The possible confounding variable may be the cane being held by one of the confederates, as this might cause a disruptive association between the dependent and independent variable.

3.)

From the result of the experiment, it could be observed that there is a positive trend between the number of witnesses(student in the room) and the time it took students to respond to someone who has fallen.

4.

Σfx / Σf

[(90*1) + (180*3) + (360*5)] ÷ (1+3+5)

2430 / 9

= 270

a.

Descriptive statistics uses statistical measures to describes the numerical or quantitative measures of a data. Descriptive statistics sucha as mean, median, mode and so on.

Inferential statistics is used to make possible deductions or predictions from a data sample. It allows us to make conclusions about a certain population from a sample to f the population data.

b.

Based on Inferential statistics and hypothesis testing of the sample data, various hypothesis test statistics may be used to establish or conclude about a population characteristics from sample data.

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