1.
When ordering vinyl replacement windows, the following variab
window. Which of these variables is quantitative?
Student
Response
A.
Value
Correct Answer
Window style
double hung,
casement, or
awning
Area of the window 100%
B. opening in square
inches
C
1.
The data in the scatterplot below are an individual's weight and
on a treadmill to raise their pulse rate to 140 beats per minute.
and the +'s to males.
Based on the scatterplot we conclude that
Student
Response
A.
Value
There is a positive
correlation
1.
A random sample of eighty-five students in Chicago city high sc
designed to improve SAT scores. Based on these students, a 9
mean improvement in SAT scores from this course for all Chica
computed as (72.3, 91.4) points. The correct interpretation of th
1.
The SAT scores of entering freshman at University X have a N(
SAT scores of entering freshman at University Y have a N(1215
sample of 100 freshman is sampled from University X, and
scores from University X, is computed. The probability that
population
1.
Suppose we have a loaded die that gives the outcomes 1 through
probability distribution.
Note that for this die all outcomes are not equally likely, as they
die. If this die is rolled 6000 times, the number of times we get
Student Response Value
A. 100
1.
A set of four cards consists of two red cards and two black card
thoroughly, and I am dealt two cards. I found the number of red
The random variable X has which of the following probability d
Student Response Value
The binomial
distribution with
parame
1.
The height (in inches) of adult males in the United States is bel
distributed with mean . The average height of a random samp
adult males is found to be = 69.72 inches, and the standard
heights is found to be s = 4.15. A 90% confidence interval for
St
1.
Scores this year on the SAT mathematics test (SAT-M) for stud
time are believed to be normally distributed with mean
second time, this year's scores are also believed to be normally
possibly different mean
. We wish to estimate the difference
the SAT-M
1.
A radio station wants to know if residents in their area are in fav
They invite listeners to call in to respond to the poll. 645 of the
against the tax. The station calculated a 95% confidence interv
77.9% and 83.4% of residents oppose the new tax."
St
1.
Suppose we roll a die and let A be the event that the number of
We then toss a coin and let B be the event that the coin comes
is
Student
Response
A.
Value
1/12.
100%
B.
4/6.
C.
Correct Answer
7/12.
Score:
2.
In a town, 30% of the households own a dog,
1.
From March 1981 to February 1983 the number of burglaries co
Georgia town was recorded. They are given in the chart below.
law was enacted requiring citizens to own a gum. Town official
the number of burglaries, by acting to deter criminals.
Student Re
1.
Which of the following is true of the slope of the least-squares r
.
B.
C.
Student Response Value
100%
A It has the same
sign as the
correlation.
Correct Answer
The square of the
slope equals the
fraction of the
variation in the
response variable
that
1.
A researcher in early education believes that kindergarten-age c
help from a female teacher than from a male teacher. From the l
the state, the researcher randomly samples four classes in which
four in which the teachers are female. The students in eac
1.
The lifetime of a 2-volt non-rechargeable battery in constant use
with a mean of 516 hours and a standard deviation of 20 hours.
with lifetimes exceeding 520 hours is approximately
A.
B.
Student Response Value
0.2000.
0.5793.
100%
C. 0.4207.
Score:
Cor