Solve the problem.A data set consists of 113 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie within two standard deviations of the mean? Round your answer to the nearest whole number.
A. 108
B. 77
C. 113
D. 54
Answer: A
Mathematics
You might also like to view...
For the given sets, construct a Venn diagram and place the elements in the proper region.Let U = {1, 2, 3, 4, 5, 6, 7, 8}A = {3, 6, 8}B = {4, 6}C = {1, 6, 7, 8}
A. 
B. 
C. 
D. 
Mathematics
Use the elimination method to solve the system.3x + y = 22x + 3y = 6
A. (- 
, 2)
B. (0, 2)
C. (2, 0)
D. No solution
Mathematics
Solve the problem. If the answer is an amount of money, round to the nearest dollar.The parking lot at a grocery store has 75 cars in it. 92% of the cars are blue. How many cars are blue?
A. 69 cars B. 82 cars C. 690 cars D. 8 cars
Mathematics
Solve the equation.(5x + 3)1/2 = 3
A. 
B. 
C. {15}
D. 
Mathematics