Maths-
SAT
Easy
Question
One hundred park-district members will be selected to participate in a survey about selecting a new park-district coordinator. Which of the following methods of choosing the 100 members would result in a random sample of members of the park district?
- Obtain a numbered list of all park-district members. Use a random number generator to select 100 members from the list. Give the survey to those 100 members.
- Obtain a list of all park-district members sorted alphabetically. Give the survey to the first 100 members on the list.
- Tell all park-district members that volunteers are needed to take the survey. Give the survey to the first 100 members who volunteer.
- Obtain a list of all park-district members who are attending an upcoming event. Give the survey to the first 100 members on the list.
The correct answer is: Obtain a numbered list of all park-district members. Use a random number generator to select 100 members from the list. Give the survey to those 100 members.
obtain a number list of all park – district members.
Use a random number generator to select 100 members from the list. Give the survey to those 100 members.
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A physician prescribes a treatment in which a patient takes 2 teaspoons of a medication every 6 hours for 5 days. According to the prescription, how many teaspoons of the medication should the patient take in a 24-hour period?
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The line graph above shows the average price of one metric ton of oranges, in dollars, for each of seven months in 2014.
Between which two consecutive months shown did the average price of one metric ton of oranges decrease the most?
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Recommended Daily Intake of Potassium
|
Age |
Potassium (mg) |
| 0-6 months |
400 |
| 7-11 months |
700 |
| 1-3 years |
3,000 |
| 4-8 years |
3,800 |
| 9-13 years |
4,500 |
| 14-17 years |
4,700 |
| 18 years and up |
4,700 |
Andrea's recommended daily intake of potassium is 50% greater than that of her two-year-old brother. What is the least possible age, in years, of Andrea?
Recommended Daily Intake of Potassium
|
Age |
Potassium (mg) |
| 0-6 months |
400 |
| 7-11 months |
700 |
| 1-3 years |
3,000 |
| 4-8 years |
3,800 |
| 9-13 years |
4,500 |
| 14-17 years |
4,700 |
| 18 years and up |
4,700 |
Andrea's recommended daily intake of potassium is 50% greater than that of her two-year-old brother. What is the least possible age, in years, of Andrea?
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Note: Figure not drawn to scale.
In the figure above, ABC and DEC are right triangles. If CD = 20 and the tangent of angle ABC is 2.5, what is the length of segment ED ?
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In the figure above, ABC and DEC are right triangles. If CD = 20 and the tangent of angle ABC is 2.5, what is the length of segment ED ?
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A red alder tree will be selected at random from the sample. What is the probability that the selected tree will have a measured diameter that is greater that is greater than 30 cm?
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Lines t and w are parallel in the xy-plane. The equation of line t is 4x + 7 y = 14, and line w passes through (-3, 8). What is the value of they-intercept of line w?
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|
Location |
2009 |
2010 |
2011 |
2012 |
2013 |
| Amusement Park A |
15.7 |
15.2 |
14.4 |
14.1 |
12.3 |
| Amusement Park B |
15.9 |
16.0 |
16.1 |
16.0 |
16.2 |
The numbers of people, in millions, who visited Amusement Park A and Amusement Park B in 2009 through 2013 are listed in the table below. What is the positive difference between the mean number of people, in millions, who visited Amusement Park B · and the mean number of people, in millions, who visited Amusement Park A during those years? (Round your answer to the nearest tenth.)
|
Location |
2009 |
2010 |
2011 |
2012 |
2013 |
| Amusement Park A |
15.7 |
15.2 |
14.4 |
14.1 |
12.3 |
| Amusement Park B |
15.9 |
16.0 |
16.1 |
16.0 |
16.2 |
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p = 9n - (2n + k)
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Maths-SAT
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y=x2 -6x - 16
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y=x2 -6x - 16
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s = 9.8t
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s = 9.8t
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Note: Figure not drawn to scale.
In the figure above, sin(90° - x0) = 
. What is the value of sin x0 ?
Note: Figure not drawn to scale.
In the figure above, sin(90° - x0) = . What is the value of sin x0 ?
Maths-SAT
