BUAL 2600 PAPER ACTUAL QUESTIONS AND
ANSWERS SURE A+
✔✔(correlation coefficient) Values near -1 show ______________ correlation -
✔✔strong negative
✔✔(correlation coefficient) Values near 0 show ______________ correlation - ✔✔no
✔✔(correlation coefficient) Values near +1 show ______________ correlation -
✔✔strong positave
✔✔y bar =b0+b1x (b1 = slope and b0=y int)
What line? - ✔✔least squares line
✔✔All of the following are used to describe quantitative data except the ________.
A. Histogram
B. Stem and leaf
C. dot plot
D. pie chart - ✔✔d
✔✔A(n) ___________ is a graph of cumulative distribution
A. histogram
B. scatter plot
C. ogive
D. pie chart - ✔✔C
✔✔_______________ can be used to study the relationship between 2 variables
A. cross tabulation tables
, B. Frequency tables
C. Cumulative frequency distributions
D. Dot plots - ✔✔A
✔✔A stem-and-leaf display is best used to ________.
A. provide a point estimate of the variability of the data set
B. provide a point estimate of the central tendency of the data set
C. display the shape of the distribution
D. display a two-variable treemap. - ✔✔C
✔✔A ________ displays the frequency of each class with qualitative data and a
________ displays the frequency of each class with quantitative data.
A. histogram, stem-and-leaf display
B. bar chart, histogram
C. scatter plot, bar chart
D. stem-and-leaf, pie chart - ✔✔B
✔✔Which of the following is a type of question used in survey research?
A) dichotomous
B) open-ended
C) multiple-choice
D) All of the answers are correct. - ✔✔D
✔✔The set of all possible experimental outcomes - ✔✔sample space
✔✔A measure of the chance that an experimental outcome will occur when an
experiment is carried out - ✔✔Probability
✔✔Set of sample space outcomes - ✔✔Event
✔✔The sum of probabilities in the sample space outcomes - ✔✔Probability of event
✔✔P(A)+P(Ā)=1 --> What does this describe? - ✔✔Complement
✔✔The __________ (A ∪ B) describes... - ✔✔Union; A or B or Both
✔✔The _____________ (A ∩ B) describes - ✔✔Intersection; And and B
✔✔The ______________ of two events A and B is the event that consists of the sample
space outcomes belonging to either event A or event B (or both) - ✔✔Union
ANSWERS SURE A+
✔✔(correlation coefficient) Values near -1 show ______________ correlation -
✔✔strong negative
✔✔(correlation coefficient) Values near 0 show ______________ correlation - ✔✔no
✔✔(correlation coefficient) Values near +1 show ______________ correlation -
✔✔strong positave
✔✔y bar =b0+b1x (b1 = slope and b0=y int)
What line? - ✔✔least squares line
✔✔All of the following are used to describe quantitative data except the ________.
A. Histogram
B. Stem and leaf
C. dot plot
D. pie chart - ✔✔d
✔✔A(n) ___________ is a graph of cumulative distribution
A. histogram
B. scatter plot
C. ogive
D. pie chart - ✔✔C
✔✔_______________ can be used to study the relationship between 2 variables
A. cross tabulation tables
, B. Frequency tables
C. Cumulative frequency distributions
D. Dot plots - ✔✔A
✔✔A stem-and-leaf display is best used to ________.
A. provide a point estimate of the variability of the data set
B. provide a point estimate of the central tendency of the data set
C. display the shape of the distribution
D. display a two-variable treemap. - ✔✔C
✔✔A ________ displays the frequency of each class with qualitative data and a
________ displays the frequency of each class with quantitative data.
A. histogram, stem-and-leaf display
B. bar chart, histogram
C. scatter plot, bar chart
D. stem-and-leaf, pie chart - ✔✔B
✔✔Which of the following is a type of question used in survey research?
A) dichotomous
B) open-ended
C) multiple-choice
D) All of the answers are correct. - ✔✔D
✔✔The set of all possible experimental outcomes - ✔✔sample space
✔✔A measure of the chance that an experimental outcome will occur when an
experiment is carried out - ✔✔Probability
✔✔Set of sample space outcomes - ✔✔Event
✔✔The sum of probabilities in the sample space outcomes - ✔✔Probability of event
✔✔P(A)+P(Ā)=1 --> What does this describe? - ✔✔Complement
✔✔The __________ (A ∪ B) describes... - ✔✔Union; A or B or Both
✔✔The _____________ (A ∩ B) describes - ✔✔Intersection; And and B
✔✔The ______________ of two events A and B is the event that consists of the sample
space outcomes belonging to either event A or event B (or both) - ✔✔Union
