ASSIGNMENT (INFERENCE)
An inference is - - - - -. - CORRECT ANSWERS-a generalisation from a specific
situation to the phenomenon in general, which have a high probability of being true
In quantitative research, 'measurement' refers to which of the options given below? -
CORRECT ANSWERS-(a) A procedure for allocating numbers to aspects of
observations based on a rule.
(c) A process of changing an abstract construct into a visible variable.
"The mental age of child number one is eight years". In this statement "mental age" is
a(n) - - - - -, whereas
"eight years" is a - - - - -. - CORRECT ANSWERS-variable; specific value of that
variable
A measurement that summarizes an aspect of a population is called a - - - - - while a
measurement that
describes the same aspect of a sample is called - - - - -. - CORRECT ANSWERS-
parameter; statistic
A - - - - - is a speculative statement about the relationship among - - - - -, based on
observations or
expectations. - CORRECT ANSWERS-hypothesis; constructs
Rose is interested in studying creativity among fine arts students. She randomly selects
100 students who
are attending a school for fine arts and tests each of them on a creativity test. In this
example, the entire
collection of fine arts students which Rose is interested in is referred to as the - - - - -,
while the 100 cases
which she requires to perform the creativity test are the - - - - -. - CORRECT
ANSWERS-population; sample
A frequency distribution of the ages in months of a class of Grade 1 children indicates
for each age in
months what the corresponding - - - - - is. - CORRECT ANSWERS-number of children
of that age
If a pupil will be chosen to go on a field trip from a class of 13 girls and 17 boys, what is
the probability that
Noni (one of the 13 girls) will be chosen, given that a girl will be selected? - CORRECT
ANSWERS-0.077
, Which statement best represents an application of the law of large numbers? If I flip a
coin 1000 times it
will fall heads up - - - - - 500 times. - CORRECT ANSWERS-approximately
Suppose that over the years 10 000 students wrote the examinations in PYC3704 and
that 6000 of them
passed, of which 300 obtained exactly 50%. This means that for randomly selected
students the
probability of obtaining exactly 50% is - - - - - while the probability of obtaining 50% or
more is - - - - -. - CORRECT ANSWERS-0.03; 0.60
The scale along the horizontal axis of the standard normal distribution indicates - - - - -. -
CORRECT ANSWERS-the number of standard deviations below and above the mean
A researcher wants to check that a pair of dice are fair (i.e. evenly balanced). What
would the probability
be of rolling two sixes with two throws of a pair of fair dice? - CORRECT ANSWERS-
0.028
What is the principal advantage of z scores? They enable one to - - - - -. - CORRECT
ANSWERS-compare a person's scores on tests with different means and standard
deviations
There are 16 boys and 24 girls in a sample of grade 11 learners. It is found that 6 of the
girls and 2 of the
boys have no brothers or sisters. If one child is drawn from this sample at random, what
is the probability
that it will be an only child? - CORRECT ANSWERS-0.200
A bowl contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is
chosen at random from
the jar, what is the probability that the marble would be EITHER green OR yellow? -
CORRECT ANSWERS-0.363
The number of items that fall into each of an ordered list of categories is calculated,
based on a sample of
data. Each of these counts are divided by the total number of observations to produce a
list of values.
This list of values gives an estimate of the - - - - - distribution of the observations. -
CORRECT ANSWERS-probability
The standard error is a measurement of - - - - -. - CORRECT ANSWERS-1. how well a
sample mean approximates a population mean
An educational psychologist measures the general knowledge of 100 learners on a
questionnaire with
An inference is - - - - -. - CORRECT ANSWERS-a generalisation from a specific
situation to the phenomenon in general, which have a high probability of being true
In quantitative research, 'measurement' refers to which of the options given below? -
CORRECT ANSWERS-(a) A procedure for allocating numbers to aspects of
observations based on a rule.
(c) A process of changing an abstract construct into a visible variable.
"The mental age of child number one is eight years". In this statement "mental age" is
a(n) - - - - -, whereas
"eight years" is a - - - - -. - CORRECT ANSWERS-variable; specific value of that
variable
A measurement that summarizes an aspect of a population is called a - - - - - while a
measurement that
describes the same aspect of a sample is called - - - - -. - CORRECT ANSWERS-
parameter; statistic
A - - - - - is a speculative statement about the relationship among - - - - -, based on
observations or
expectations. - CORRECT ANSWERS-hypothesis; constructs
Rose is interested in studying creativity among fine arts students. She randomly selects
100 students who
are attending a school for fine arts and tests each of them on a creativity test. In this
example, the entire
collection of fine arts students which Rose is interested in is referred to as the - - - - -,
while the 100 cases
which she requires to perform the creativity test are the - - - - -. - CORRECT
ANSWERS-population; sample
A frequency distribution of the ages in months of a class of Grade 1 children indicates
for each age in
months what the corresponding - - - - - is. - CORRECT ANSWERS-number of children
of that age
If a pupil will be chosen to go on a field trip from a class of 13 girls and 17 boys, what is
the probability that
Noni (one of the 13 girls) will be chosen, given that a girl will be selected? - CORRECT
ANSWERS-0.077
, Which statement best represents an application of the law of large numbers? If I flip a
coin 1000 times it
will fall heads up - - - - - 500 times. - CORRECT ANSWERS-approximately
Suppose that over the years 10 000 students wrote the examinations in PYC3704 and
that 6000 of them
passed, of which 300 obtained exactly 50%. This means that for randomly selected
students the
probability of obtaining exactly 50% is - - - - - while the probability of obtaining 50% or
more is - - - - -. - CORRECT ANSWERS-0.03; 0.60
The scale along the horizontal axis of the standard normal distribution indicates - - - - -. -
CORRECT ANSWERS-the number of standard deviations below and above the mean
A researcher wants to check that a pair of dice are fair (i.e. evenly balanced). What
would the probability
be of rolling two sixes with two throws of a pair of fair dice? - CORRECT ANSWERS-
0.028
What is the principal advantage of z scores? They enable one to - - - - -. - CORRECT
ANSWERS-compare a person's scores on tests with different means and standard
deviations
There are 16 boys and 24 girls in a sample of grade 11 learners. It is found that 6 of the
girls and 2 of the
boys have no brothers or sisters. If one child is drawn from this sample at random, what
is the probability
that it will be an only child? - CORRECT ANSWERS-0.200
A bowl contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is
chosen at random from
the jar, what is the probability that the marble would be EITHER green OR yellow? -
CORRECT ANSWERS-0.363
The number of items that fall into each of an ordered list of categories is calculated,
based on a sample of
data. Each of these counts are divided by the total number of observations to produce a
list of values.
This list of values gives an estimate of the - - - - - distribution of the observations. -
CORRECT ANSWERS-probability
The standard error is a measurement of - - - - -. - CORRECT ANSWERS-1. how well a
sample mean approximates a population mean
An educational psychologist measures the general knowledge of 100 learners on a
questionnaire with
