Mathematics B - Regents High School Examination - The University Of The State Of New York - 2009 Page 13

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Part III
Answer all questions in this part. Each correct answer will receive 4 credits. Clearly indicate the
necessary steps, including appropriate formula substitutions, diagrams, graphs, charts, etc. For all
questions in this part, a correct numerical answer with no work shown will receive only 1 credit.
[
]
24
27 The average monthly high temperatures, in degrees Fahrenheit, for
Binghamton, New York, are given below.
January
28
July
78
February 31
August
76
March
41
September 68
April
53
October
57
May
68
November 44
June
73
December 33
For these temperatures, find, to the nearest tenth, the mean, the
population standard deviation, and the number of months that fall
within one standard deviation of the mean.
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[OVER]
Math. B – Jan. ’09

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