ALREADY GRADED A+
USE
Statcrunch
or another source to calculate numbers (MEAN, MEDIAN, STANDARD DEVIATION)
THIS IS WILL HELP!!!
Which of the following are true of the data shown in the histogram?
I. The distribution is approximately symmetric.
II. The mean and median are approximately equal.
III. The median and IQR summarize the data better than the mean and standard deviation.
C : I and II
A histogram of salaries (in $) for a sample of U.S. marketing managers is provided. What is the shape
of this distribution?
B : Right Skewed
Prices per share of the 20 most actively traded stocks on the New York Stock Exchange in October,
2012. A histogram for these data are shown below. Which of the following statements most
accurately describes the data?
E : The data is skewed to the right with a large positive outlier
A histogram of prices for a sample homes recently sold in a metropolitan area in the southeastern
region of the U.S is provided. Which of the following statements is true?
A : This distribution is right skewed
A manufacturer of cable wire periodically selects samples to monitor the process. A sample of ten
wires is selected and the diameters (in cm.) What is the mean diameter?
0.493,
0.511,
0.519,
0.527,
0.530,
0.534,
0.551,
0.559,
0.562,
0.565
C : 0.535 cm
, The following table shows data for total assets ($ billion) for a small sample of U.S. banks (late 2013).
What is the mean for the total assets data ($ billion)?
BANK / ASSETS ($ Billion)
State Street Bank and Trust (160.5)
Discover Bank (63.9)
BancWest (72.8)
Citizens Bank (130.0)
Northern Trust (83.8)
Huntington Bank (53.8)
Key Bank (91.8)
People's United (27.9)
C : $ 85.6
= 85.5625
The following table shows total assets ($ billion) for a small sample of U.S. banks. What is the mean
for these data?
BANK / ASSETS ($ Billion)
Bank of New York (88)
Regions Financial (80)
Fifth Third Bank (58)
State Street Bank and Trust (92)
Branch Banking and Trust Company (81)
Chase Bank (70)
Key Bank (89)
PNC Bank (84)
E : $ 80.25 billion
A manufacturer of cable wire periodically selects samples to monitor the process. A sample of ten
wires is selected and the diameters (in cm.) What is the standard deviation?
0.493,
0.511,
0.519,
0.527,
0.530,
0.534,
0.551,
0.559,
0.562,
0.565
E : 0.024 cm