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STATS Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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STATS Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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STATS Exam | Questions And Answers Latest {2024- 2025} A+ Graded | 100% VerifiedEldrick manages wildlife samples for Ducks Unlimited. Two samples of duck populations at a migratory
site are shown in the table below. Which statement about the samples is true? - Eldrick should take
another sample because there is too much variability in the two samples.
A restaurant serves three types of omelettes. Surveys were taken of the last two days of orders and are
displayed in the table below. Approximately 200 omelettes are served each day. What is the average
number of ham and cheese omelettes served each day? - 120
The owner of a local restaurant surveyed her staff on their preference of uniform color. The results are
displayed in the table below. Which pair of samples is most representative of the preference of all the
staff? - NOT None of the samples are representative because none of the values remained constant.
Braden wants to compare the types of ducks in two nearby ponds. He collected two samples using the
following criteria. For sample 1, he counted the types of ducks on Walden Pond from 6 A.M. to 9 A.M.
For sample 2, he counted the number of Mallard ducks that were on Brook's Pond from 12 P.M. to 3
P.M. What would improve Braden's plan? Check all that apply. - Braden should sample the ducks on
each pond at the same time of day because animals are active at different times.
Braden should sample twice at each pond if he wants to make sure each sample is representative of the
population.
Braden should count more than Mallard ducks on Brook's Pond if he wants to compare the types of
ducks on each pond.
Mr. Sanchez surveyed classes to aid in planning the end-of-year party. For the first sample, Mr. Sanchez
surveyed every third person on each first-period class roster. For the second sample, Mr. Sanchez
surveyed his five honors math classes. Which statement about Mr. Sanchez's samples is true? - Sample 2
is biased.
Ducks Unlimited helps sample duck species across the United States. Samples from one particular
location for the last two years are shown below. Which duck population seemed to hold steady? - Wood
Duck
Two samples were taken of fish caught on Small Lake and are shown in the table below. It is estimated
that the Small Lake fish population is roughly 1,000 fish. What is the average number of brown trout in
the lake? - 80
, Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The
counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the
number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true?
Check all that apply. - He should have found the average of the number of rock songs by averaging 4 and
6 to get 5.
He did not multiply the numerator and denominator by the correct number to equal 1,500.
He should have multiplied the numerator and denominator by 75, not 30, because mr026-2.jpg.
Student representatives surveyed their classmates on their preference of a school mascot for a new
school. The results are shown in the table below. Which pair of samples seems most representative of
student preference? - NOT Sample 1 and sample 3 are most representative because 0 should not appear
in a sample.
Which value is the best estimate of the mean of the population? - 24.2
Looking at the table of sample means, which value is the best estimate of the mean of the population? -
14
Julia surveyed her friends to find the number of hours they spend on homework during the week. The
data from her survey is displayed in the first table. She then took a random sample of five responses
from the population as shown in the second table. Compare the mean of the population with the mean
of the given sample. - 0.3
Myra polled twenty-five students in her class to determine the number of movies the students attended
at the theater this year. The results are in the table. She decided to find the mean of a sample using Row
1 and Row 5. - 4
Lucilla wondered what the average weight of each orange was in a five-pound bag of oranges. She
purchased six bags and calculated the average weight for a single orange in each bag. - 6.9 oz and 8.1 oz.
Ms. Sanchez's students were asked how many hours they spend participating in organized sports each
week. Each row of the table represents one sample from the class. - 2.2
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