
Chemometrics Challenge

Quiz
•
Mathematics
•
University
•
Medium

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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