Solve the problem.A group of test scores are normally distributed with a mean of 73 and a standard deviation of 5. What percentage of the test scores falls within 2 standard deviations to either side of the mean?
A. 81.85%
B. 68.26%
C. 95.44%
D. 47.72%
Answer: C
Mathematics
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The general term of a sequence is given. Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.an = 5n2
A. geometric, r = 5
B. arithmetic, d = 5
C. geometric, r = 
D. neither
Mathematics
Find all solutions of 
a. 
b. 
c. x = -3
d. x = 4
e.
Mathematics
Let U = {all soda pops}; A = {all diet soda pops}; 
and 
Describe the given set in words.C'
A. All cola soda pops not in cans B. All soda pops not in cans C. All diet soda pops not in cans D. All soda pops
Mathematics
Combine like terms.8x2 + 2x - 6x2 + 9x + 5
A. 2x2 + 11x + 5 B. 13x6 + 5 C. 10x3 + 3x3 + 5 D. 2x4 + 11x2 + 5
Mathematics