13. SAT Writing Scores U = 488 O= 114 200
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
What percent of men have a total cholesterol level less than 225 milligrams per deciliter of blood?
![13.
SAT Writing Scores
U = 488
O= 114
200 <x < 450
200
450
800
Score
(Source: The College Board)
15.
U.S. Men Ages 35–44:
Total Cholesterol
220 < x< 255
µ = 205
O= 37.8
75
220 255
300
Total cholesterol level (in mg/dL)
(Adapted from National Center
for Health Statistics)
Using Normal Distributions In Ex
the specified normal distribution.
17. SAT Writing Scores Use the norm
(a) What percent of the SAT writin
(b) Out of 1000 randomly selecte
would you expect to be greater
18. SAT Math Scores Use the norma
(a) What percent of the SAT math
(b) Out of 1500 randomly select](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F486282da-3963-4c87-bba9-080fd3c51987%2F1475a1c6-c253-47cb-acf0-5055f859cd6e%2Fy180fkb.jpeg&w=3840&q=75)
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