An inference is - - - - -. - (correct Answer) - 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 Answer) - (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 Answer) - 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 Answer) -
parameter; statistic
A - - - - - is a speculative statement about the relationship among - - - - -,
based on observations or
expectations. - (correct Answer) - 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
Answer) - 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 Answer) - 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 Answer) - 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 Answer) - 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 Answer) - 0.03; 0.60
The scale along the horizontal axis of the standard normal distribution indicates -
- - - -. - (correct Answer) - 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 Answer)
- 0.028
What is the principal advantage of z scores? They enable one to - - - - -. -
(correct Answer) - 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 Answer) - 0.200
A bowl contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is
chosen at random from
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 Answer) - (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 Answer) - 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 Answer) -
parameter; statistic
A - - - - - is a speculative statement about the relationship among - - - - -,
based on observations or
expectations. - (correct Answer) - 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
Answer) - 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 Answer) - 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 Answer) - 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 Answer) - 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 Answer) - 0.03; 0.60
The scale along the horizontal axis of the standard normal distribution indicates -
- - - -. - (correct Answer) - 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 Answer)
- 0.028
What is the principal advantage of z scores? They enable one to - - - - -. -
(correct Answer) - 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 Answer) - 0.200
A bowl contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is
chosen at random from
