exam
Maths Puzzle
Numerical Ability
The preimeter of a rectangle is 200 inches. The length exceeds the width by 46 inches. Find the length and the width.
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exam Other Question
A large set of sample scores yeilds a mean and a standard deviation of 75.00 and 5.00 respectivly. The distribution is roughly bell shaped. what percentage of the scores should fall between 70.00 and 80.00?
on chapter one page 43 44 - 60 i dont under stand the whole order of operation and how you divide the numbers like number 44 which i really cant explain if you can help me that