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22 Feb 2023, 01:29
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D
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46% (02:13) correct
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List L consists of the integers from 1 to 99 and two integers c and d such that c + d = 100 and cd <0. Which of the following statements must be true?
I. The average (arithmetic mean) of the numbers in L is equal to the median of the numbers in L .
II. The range of the numbers in L is greater than 100.
III. The range of the numbers in L is an odd number.
A. I only
B. II only
C. III only
D. I and II only
E. I, II, and III
I. The average (arithmetic mean) of the numbers in L is equal to the median of the numbers in L .
II. The range of the numbers in L is greater than 100.
III. The range of the numbers in L is an odd number.
A. I only
B. II only
C. III only
D. I and II only
E. I, II, and III
22 Feb 2023, 05:34
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What is the answer to this question?
Sushil117
Joined: 04 Mar 2020
Last visit: 13 Nov 2023
Posts: 248
Given Kudos: 100
Location: India
Schools: Smith Ivey Alberta '23 HEC Montreal Rotman '23
GPA: 3.3
22 Feb 2023, 09:37
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List L consists of the integers from 1 to 99 and two integers c and d such that c + d = 100 and cd <0. Which of the following statements must be true?
either C or D is -ve
c=-1 then D=101 or C=101 and D=-1
or C=-2 & D= 102..etc
I. The average (arithmetic mean) of the numbers in L is equal to the median of the numbers in L .
avg of 1 to 99 =50 is same as median . add c and d, remains the same.
II. The range of the numbers in L is greater than 100.
c and D, last can be -1 and 101
III. The range of the numbers in L is an odd number.
range is -1 to 101 or -2 to 102...so not true
IMO D
either C or D is -ve
c=-1 then D=101 or C=101 and D=-1
or C=-2 & D= 102..etc
I. The average (arithmetic mean) of the numbers in L is equal to the median of the numbers in L .
avg of 1 to 99 =50 is same as median . add c and d, remains the same.
II. The range of the numbers in L is greater than 100.
c and D, last can be -1 and 101
III. The range of the numbers in L is an odd number.
range is -1 to 101 or -2 to 102...so not true
IMO D
