JANUARY REGIONAL
STATISTICS INDIVIDUAL
Select the best answer to each question. The choice E) NOTA denotes None of the above.
A z-table is attached to the back of this test. Good luck and have fun!
For q
February Regional
Statistics Team
Question #1
Mrs. Ws AP Statistics scores are reported below. Using the data, calculate the following
statistics.
Score
Frequency
1 2
7 7
3 4 5
14 9 10
A= The mean of the test scores
B= The variance of the test scores
C= T
January Regional
Statistics Individual Solutions
1. C
2. E
(0 + 1 + 2 + 9 + 2 + 0 + 1 + 1) / 8 = 2.
None of these statements are accurate. An alternative statement that would be correct is If this
procedure were repeated many times, 95% of the intervals w
January Regional
Statistics Individual Test
All answers are exact, unless specified in the question. For all questions, choose "E. NOTA" if you believe
that none of the given answer choices are correct. The abbreviation SRS means simple random sample.
Do
January Regional
Statistics Individual Test
Directions: The answer choice E. NOTA denotes None of the Above. All answers must be exact unless
otherwise specified. Statistical tables are attached to the back of this test. Good luck, and have fun!
1. Find t
January Regional Statistics Individual Solutions
1. Range = Max Min
= 31 (-3)
= 34 D
2. Standard Deviation of sample is 10.86 (for population is10.05)
Variance of sample is 10.862 and for population 10.052
Range is 34 from # 1
IQR is 11 (15 4 Of these cho
January Regional
Statistics Test
NOTA stands for None of the Above answers are correct.
Solutions
1. Which of the following correlation coefficients would yield a coefficient of determination of 0.64?
A. 0.4096
B. 0.8
C. 0.64
D. 0.4096 E. NOTA
B. The corr
January 2008 Statistics Solutions
1. B. Of the 4500 Deerfield fans, 63%, or 2835 fans buy water. 78% of visiting fans, or
2730 fans, buy water. A total of 5565 fans bought water. Of those, 2835 were from
2835 27
Deerfield. So the solution is
= .
5565 53
2
Cypress Bay March Invitational 2015
Statistics Team: Question 1
Schrute Farms grows the best beets around. The weight of all beets grown at Schrute Farms is normally
distributed with a mean of 248 grams and a standard deviation of 12 grams. Use the empiri
March Regional
Statistics Team Question 1
A: The mean of the set cfw_1, 2, 3, 4, ., 2012
B: On his daily lab assignments, Peter scored the maximum score of 15 on 9 out of the 30 days
of lab. The mode of his scores is 11, and his median score is 12. What i
January Statistics Regional
Team Question #1
The following is a set of data from a simple random sample:
94, 90, 15, 51, 41, 73, 3, 34, 99, 20
Answer the following:
A = the mean of the data set
B = t
January Regional
Statistics Test
NOTA stands for None of the Above answers are correct.
1. Which of the following correlation coefficients would yield a coefficient of determination of 0.64?
A. 0.4096
B. 0.8
C. 0.64
D. 0.4096 E. NOTA
2. The six sides of D
January Regional
Statistics Individual Test
Let NOTA Denote None of the Above Answers
1. The height of American adult men is approximately normal with a mean of 69 inches
and a standard deviation of 2.5 inches. Using the table what percent of men are at
l
1. B) Gaussian "normal" curve
2. B) definition of Simpson's paradox
3. A) 1/4165 any one of 13 values can be the value appearing 4 times, the last card can be
any one of 12 other values and any of 4 suits. There are
combinations of 5 cards so:
13124
52
5