Mathematics · Question Bank
Statistics
30 of 92 questions match · page 1 of 2. Answer in your head first, then check the solution.
#1📘 reviewer_appEasy
The product of nPn-r and rPl is equal to
AnPn-r+l
BnPn+r-l
CnPn-l
DnPr-l
#2📘 reviewer_appEasy
It is a measure of dispersion which depends only on two scores in the entire distribution.
Amean deviation
Bquartile deviation
Cvariance
Drange
#3📘 reviewer_appEasy
The most numerous or most common value in a series of values is called the
#4📘 reviewer_appEasy
What do you call each possible outcome of an experiment?
Atrial
Bsample
Cevent
Dvariate
#5📘 reviewer_appEasy
Which of the following is a measure of central tendency whose magnitude depends directly on the size of the scores in the group?
Aarithmetic mean
Bharmonic mean
CMedian
DMode
#6📘 reviewer_appEasy
An arrangement of raw numerical data in ascending or descending order of magnitude is called
Adata
Barray
Cfrequency
Dcategory
#7📘 reviewer_appEasy
A tabulation of data showing the number of times a score or group of scores appears is called
Anormal distribution
BPoisson distribution
Cfrequency distribution
Dprobability distribution
#8📘 reviewer_appEasy
The probability of an impossible event is
Azero
Bunity
Cinfinity
Dundefined
#9📘 reviewer_appEasy
It is a variable that can only assume designated values.
Acontinuous variable
Bparameter
Cdiscrete variable
Dvariate
#10📘 reviewer_appEasy
If two events have no outcome in common, then they are said to be
Adependent
Bindependent
Cmutually exclusive
Dmutually inclusive
#11📘 reviewer_appEasy
The total area under a probability curve is always
Aequal to unity
Bgreater than one
Cbetween zero and one
Dless than one
#12📘 reviewer_appEasy
The range is a measure of
Avariability
Bdeviation
Ccentral tendency
Ddistribution
#13📘 reviewer_appEasy
It is a measure of dispersion which depends upon the deviation of all scores from the mean.
Aaverage deviation
Bquartile deviation
Cmean deviation
Dstandard deviation
#14📘 reviewer_appEasy
Which of the following is not a continuous variable?
Aweight of a body
Bheight of a body
Ctemperature of an object
Dnumber of girls
#15📘 reviewer_appEasy
It represents that point in the data where one half of the scores fall below that point and one half falls above it.
Aaverage
Bmedian
Cmidscore
Dmean
#16📘 reviewer_appEasy
Which of the following events are mutually exclusive?
Aevents “ace or black card”
Bevents “king or red card”
Cevents “queen or face card”
Devents “diamond or black Jack”
#17📘 reviewer_appEasy
In probability theory, what do you call the set of all possible outcomes of an experiment?
Aevent
Btrial
Csample space
Dvariate
#18📘 reviewer_appEasy
If A and B are two events and p(A and B) = p(A)p(B), then the two events are said to be
Acomplementary
Bindependent
Cdisjoint
Ddependent
#19📘 reviewer_appEasy
The highest score in a distribution minus the lowest score is called the
Aclass mark
Bmedian
Crange
Dstandard score
#20📘 reviewer_appEasy
It refers to the number of times a score occurs in a sample.
Aoutcome
Bmode
Caverage
Dfrequency