First semester recap-Statistics

Introduction to Statistics

100

What is the difference between a sample and a parameter?

Sample is a part and population the whole

200

 Number of chairs in a classroom.

Quantitative or Qualitative?

quantitative

300

The flavor of ice cream chosen by students.

qualitative or quantitative?

qualitative

400

 Out of 10,000 students, they randomly survey 200.

What is the Sample and population?

Sample:200

population:  10000

500

What is the placebo effect?

The placebo effect is a phenomenon where a person's symptoms improve after receiving a fake treatment (like a sugar pill or saline shot) because they believe it's real and effective, triggering the brain-body connection for healing, though it doesn't cure the underlying disease.

powers

100

2²

4

200

3²

9

300

2³

8

400

6²

36

500

3³

27

Square Roots

100

Square root of 4

2

200

Square root of 16

4

300

Square root of 49

7

400

Square root of 144

12

500

square root of 225

15

Sign Rules

100

4 - 10

- 6

200

-5 + 3

-2

300

- 5 + 17

12

400

- 13 - 15

- 18

500

(-3)(-3)

9

Measures of central tendency

100

What is the mode?

4, 6, 8, 2, 4, 9, 9, 2, 2

2

200

If there are no Repeated numbers, then the answer will be…

No mode

300

Si 3 números se repiten la misma cantidad de veces, se le llama…

Trimodal

400

What is the median?

4, 6, 8, 2, 4, 9, 9, 2, 2

2, 2, 2, 4, 4, 6, 8, 9, 9

500

What is the mean?

4, 6, 8, 2, 4, 9, 9, 2, 2

5.1