Maths-
SAT
Easy
Question
WA sample of 40 fourth-grade students was selected at random from a certain school. The 40 students completed a survey about the morning announcements, and 32 thought the announcements were helpful. Which of the following is the largest population to which the results of the survey can be applied?
- The 40 students who were surveyed
- All fourth-grade students at the school
- All students at the school
- All fourth-grade students in the county in which the school is located
The correct answer is: All fourth-grade students at the school
Since the survey is done for fourth – grade students, the largest population it can be applied is for all fourth-grade students at the school.
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The figure above shows a graph with six regions that correspond to temperature, in degrees Fahrenheit (°F), and humidity conditions, in grams of water vapor per cubic meter of air (g/m3), that will result in different snow crystal shapes when the crystals are grown in a laboratory. Based on the graph, which of the following is a combination of temperature and humidity at which prisms will be formed?
The figure above shows a graph with six regions that correspond to temperature, in degrees Fahrenheit (°F), and humidity conditions, in grams of water vapor per cubic meter of air (g/m3), that will result in different snow crystal shapes when the crystals are grown in a laboratory. Based on the graph, which of the following is a combination of temperature and humidity at which prisms will be formed?
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Observed Matings among Fruit Flies
The table above shows the observed mating frequencies among a group of fruit flies raised on either a starch medium or a maltose medium. "What fraction of the observed matings were between fruit flies that were raised on the same medium?
Observed Matings among Fruit Flies
The table above shows the observed mating frequencies among a group of fruit flies raised on either a starch medium or a maltose medium. "What fraction of the observed matings were between fruit flies that were raised on the same medium?
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Questions 33 and 34 refer to the following information
The results of an international survey of contact lens fittings during a given time period are summarized in the table and bar graph above. The table shows the number of total fittings and the mean age, in years, of the patients who were fitted for contact lenses during the time period. The total fittings consisted of new contact lens fittings and re fittings. The bar graph shows the percent of the patients who received new fittings and the percent who received re fittings.
Of the following, which best approximates the number of patients surveyed who received re fittings in New Zealand?
Questions 33 and 34 refer to the following information
The results of an international survey of contact lens fittings during a given time period are summarized in the table and bar graph above. The table shows the number of total fittings and the mean age, in years, of the patients who were fitted for contact lenses during the time period. The total fittings consisted of new contact lens fittings and re fittings. The bar graph shows the percent of the patients who received new fittings and the percent who received re fittings.
Of the following, which best approximates the number of patients surveyed who received re fittings in New Zealand?
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The scatterplot above shows the citrus production, in millions of metric tons, in China from 2006 through 2014. Which of the following could be the slope of a line of best fit for these data?
The scatterplot above shows the citrus production, in millions of metric tons, in China from 2006 through 2014. Which of the following could be the slope of a line of best fit for these data?
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In the graph, the point (0, 0) represents the entry to the bridge. Which of the following points represents the exit from the bridge on the opposite end?
The vertical height, in meters, of the upper arch of the Harbor Bridge in Sydney, Australia, above the roadway of the bridge can be modeled by the function above, where x is the horizontal distance along the roadway, in meters, from the entry to the bridge. The graph of y=J(x) is shown in the x y-plane below.
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ax + by = b
In the equation above, a and b are constants and' o < a < b . Which of the following could represent the graph of the equation in the x y-plane?
ax + by = b
In the equation above, a and b are constants and' o < a < b . Which of the following could represent the graph of the equation in the x y-plane?
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In the figure above, segments AE and BD are parallel. If angle BDC measures 58° and angle ACE measures 62°, what is the measure of angle CAE?
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The graph shows the power capacity for the nine countries that had the greatest geothermal power capacity in 2010. What was the capacity, in megawatts, of the country that had the median capacity of the nine countries?
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