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TPN3704 PORTFOLIO ASSIGNMENT 50 2020
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TPN3704 PORTFOLIO ASSIGNMENT 50 2020
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TPN3704 PORTFOLIO ASSIGNMENT 50 2020An inference is - - - - -. - (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? -
(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 - - - - -. - (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 - - - - -. - (ANSWER)parameter; statistic
A - - - - - is a speculative statement about the relationship among - - - - -, based on observations
or
expectations. - (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 - - - - -. - (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. - (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? - (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. - (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
- - - - -. - (ANSWER)0.03; 0.60
The scale along the horizontal axis of the standard normal distribution indicates - - - - -. -
(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? - (ANSWER)0.028
What is the principal advantage of z scores? They enable one to - - - - -. - (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
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