STA 2381 Quiz: Chapter 2 terms and definitions

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corallouse434

11 Sep 2016

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The values of a variable for one or more people or things yield data. Each individual piece of data is called an observation, and the collection of all observations is called a data set: counting the number of siblings in a family is an example of a discrete quantitative variable. The weight of a newborn baby is an example of a continuous quantitative variable: true or false. Since most statistical procedures are valid for any type of data, it is not too important that you are able to classify the data false: true or false. The bars in a bar chart do not touch because the quantitative values represented on the horizontal axis aren"t all the same false: true or false. So the two are very different: they look almost identical. The only difference is the scale on the vertical axis. For a frequency histogram, the vertical axis is a count.

Related Questions

The Process of Science

1. After formulating a hypothesis, a scientist

(a) proves the hypothesis to be true or false.

(b) test the hypothesis

(d) makes sure environmental conditions are just right

(e) formulates a scientific theory

2. Experiments examine the contribution of the .........to the observation.

(a) respeonding variable

(b) control group

(d) experimental variable

3. Which of the following is not correctly linked?

(a) model: a representation of an experiment

(b) standard deviation: a from of statistical analysis

(d) data: the results of an experiment or observation.

Challenges Facing Science:

4. Which of the following applies scientific knowledge to the needs of society?

(a) evolution

(b) taxonomy

(d) technology

5. Which of the following represents the permanent loss of a species?

(a) natural selection

(b) greenhouse effect

(d) climate change.

6. and SARS are examples of

(a) extinct species

(b) forms of greenhouse gases

(d) emerging diseases.

taupebat34

Your program will take an arithmetic expression as a String input. For Example:

“1+2*(3/4)”

“1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14”

“1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14”

Program

Your program will determine whether the open brackets (the square brackets, curly braces and the parentheses) are closed in the correct order.

Outputs:

Output 1

1+2*(3/4)

This expression is correct.

Output 2

1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 10. ‘{‘- not closed.

Output 3

1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14

This expression is correct.

Output 4

1+2]*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 4. ‘]‘- not opened.

Task 1

Solve the above problem using an array-based stack.

Task 2

Solve the above problem using a linked list-based stack.

goldtrout295

Complete the following problem using concepts of STACK.
If you are using JAVA, you must include the main method as well which should test your other methods and print the outputs according to the tasks.
If you are using PYTHON, make sure your code has the methods invoked and proper printing statements according to the tasks.
Your program will take an arithmetic expression as a string input. For Example:
- “1+2*(3/4)”
- “1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14”
- “1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14”
Program

Your program will determine whether the open brackets (the square brackets, curly braces, and the parentheses) are closed in the correct order.

Outputs:

Output 1

1+2*(3/4)

This expression is correct.

Output 2

1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 10. ‘{‘- not closed.

Output 3

1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14

This expression is correct.

Output 4

1+2]*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 4. ‘]‘- not opened.

Task 1

Solve the above problem using an array-based stack.

Task 2

Solve the above problem using a linked list-based stack.

goldtrout295

STA 2381 Quiz: Chapter 2 terms and definitions

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