STATISTICS OBJECTIVE
ASSESSMENT 1 XAM QUESTIONS
AND ANSWERS 2025
Given the following set of numbers: 3.3, -2.3, -16, 25. What are the square roots of the
whole number?
A. +/- 2.3
B. +/- 3.3
C. +/- 4
D. +/- 5 - ANSWERSD. +/- 5
Composite Number - ANSWERSA number with more factors that just one and itself.
Equivalent Fractions - ANSWERSDifferent fractions that represent the same value.
X-Axis - ANSWERSThe horizontal line that passes through the origin on a coordinate
plane.
Qualitative Data - ANSWERSNon-numeric information based on some quality or
characteristic.
No Correlation - ANSWERSThere is no apparent overall trend between the two
variables. If the correlation coefficient is 0, this only rules out a linear trend. There could
be a non-linear or curvilinear trend.
Extrapolate - ANSWERSUsing information from a data set to make predictions about
data outside of the original set.
Event - ANSWERSAn outcome, or set of outcomes, whose chance of occurrence can
be represented with a probability.
Given the following set of numbers: 10, 2.5, -4, -4.5, 5. What is the sum when adding
together only the whole numbers?
A. 5.5
B. 11
C. 12.5
D. 15 - ANSWERSD. 15
Operation - ANSWERSIn Mathematics, an operation is a procedure which generates a
new value from one or more operands, or Mathematical values.
, Conditional Proportion - ANSWERSA proportion where one part of the proportion is a
variable, or unknown quantity.
Coefficients - ANSWERSA number by which a number is multiplied. This number is
written in front of the variable(s).
Mean - ANSWERSAverage, calculated by adding a series of elements in a data set
together and dividing by the total number in the series.
Outlier - ANSWERSAn observation point that is statistically distant from the other
observations in the dataset.
Regression Line - ANSWERSThe line of best fit to show the relationship between
variables, the one that minimizes distance from each data point to the line.
Experiment - ANSWERSA procedure that can be done repeatedly which has a well
defined set of outcomes.
Given the following expression: 4 + 7 × (6 - 3)2. What is the answer using proper order
of operations?
A. 25
B. 46
C. 67
D. 99 - ANSWERSC. 67
Multi-Step Expression - ANSWERSAn expression or equation with more than two
values and two or more operators that requires multiple steps to be solved.
Improper Fraction - ANSWERSA fraction where the number in the numerator is more
than the number in the denominator.
Y-Intercept - ANSWERSThe y-value of the point at which a line intersects with the y-
axis.
Check Sheet - ANSWERSA structured form or table that allows data to be collected by
marking how often an event has occurred in an certain interval.
Linear - ANSWERSAn expression or equation of degree 1.
Least Squares - ANSWERSA technique for finding the regression line.
Sample Size - ANSWERSThe number of different outcomes for an experiment.
Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the
proper order of operations?