Chemometrics Challenge

Chemometrics Challenge

University

10 Qs

quiz-placeholder

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Chemometrics Challenge

Chemometrics Challenge

Assessment

Quiz

Mathematics

University

Medium

Created by

Adam Andrzejewski

Used 2+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is chemometrics?

Chemometrics primarily focuses on the synthesis of new chemical compounds.

Chemometrics is solely concerned with the qualitative analysis of chemical substances.

Chemometrics is a field of chemistry in which statistics, mathematics and other methods that use formal logic

Chemometrics involves the study of chemical reactions and their kinetics without any statistical methods.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Standardized normal distribution has:

mean = 1,

SD = 0.

mean = 1,

SD = 1.

mean = 0,

SD = 1.

mean = 0,

SD = -1.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Random variable is:

a constant value assigned to each element in the sample space

a function that associates a real number with each element in the sample space

a set of random outcomes with no particular association

a mathematical operation performed on the sample space elements

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

For normal curve the truth is that:

mode > median > mean

mode = median = mean

mode <median < mean

mode < median > mean

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Variance is a measure of:

central tendency

probability

correlation

dispersion

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The quartile range is the difference between:

Q3 and Q1

Q2 and Q1

Q3 and Q2

Q4 and Q3

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Student t-distribution is used in the case of calculating confidence intervals when:

n > 30,

sigma is unknown.

n < 30,

sigma is unknown.

n < 30,

sigma is known.

n > 30,

sigma is known.

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