At a large high school, 300 students were selected at random and were asked in a survey about a menu change in the school cafeteria. All 300 students completed the survey. It was estimated that 38% of the students were in support of a menu change, with a margin of error of 5.5%. Which of the following is the best interpretation of the survey results?
277 items match · Math · Problem-Solving and Data Analysis
The length of the base of a certain parallelogram is of the height of the parallelogram. Which expression represents the length of the base of the parallelogram, where is the height of the parallelogram?
The table above shows a summary of 1,200 responses to a survey question. Based on the table, how many of those surveyed get most of their medical information from either a doctor or the Internet?
If one of the days on which there was no rain is selected at random, what is the probability the day was a weekend day?
Of beads, are silver. What percentage of the beads are silver?
A fish swam a distance of yards. How far did the fish swim, in miles?
The population of Greenville increased by from to . If the population is times the population, what is the value of ?
The population density of Cedar County is people per square mile. The county has a population of people. What is the area, in square miles, of Cedar County?
What length, in centimeters, is equivalent to a length of meters?
The table summarizes the distribution of age and assigned group for participants in a study.
| – years | – years | years | Total | |
|---|---|---|---|---|
| Group A | ||||
| Group B | ||||
| Group C | ||||
| Total |
One of these participants will be selected at random. What is the probability of selecting a participant from group A, given that the participant is at least years of age? (Express your answer as a decimal or fraction, not as a percent.)
In a group, % of the items are red. Of all the red items in the group, % also have stripes. What percentage of the items in the group are red with stripes?
A certain town has an area of square miles. What is the area, in square yards, of this town?
What is the range of the number of wheels made for the 11 one-hour periods?
The scatterplot above shows the number of visitors to a railroad museum in Pennsylvania each year from 1968 to 1980, where t is the number of years since 1968 and n is the number of visitors. A line of best fit is also shown. Which of the following could be an equation of the line of best fit shown?
A distance of furlongs is equivalent to how many feet?
A number n is increased 6%. If the result is 318, what is the value of n ?
A market researcher selected 200 people at random from a group of people who indicated that they liked a certain book. The 200 people were shown a movie based on the book and then asked whether they liked or disliked the movie. Of those surveyed, 95% said they disliked the movie. Which of the following inferences can appropriately be drawn from this survey result?
The weights, in pounds, for 15 horses in a stable were reported, and the mean, median, range, and standard deviation for the data were found. The horse with the lowest reported weight was found to actually weigh 10 pounds less than its reported weight. What value remains unchanged if the four values are reported using the corrected weight?
For the values and , the ratio of to is to . If is multiplied by , what is multiplied by in order to maintain the same ratio?
At a conference, there are a total of attendees. Each attendee is assigned to either group A, group B, or group C. If one of these attendees is selected at random, the probability of selecting an attendee who is assigned to group A is and the probability of selecting an attendee who is assigned to group B is . How many attendees are assigned to group C?
An airplane descends from an altitude of feet to feet at a constant rate of feet per minute. What type of function best models the relationship between the descending airplane's altitude and time?
Marta has 7,500 pesos she will convert to US dollars using a currency exchange service. At this time, the currency exchange rate is 1 peso = 0.075 US dollars. The exchange service will charge Marta a 2% fee on the converted US dollar amount. How many US dollars will Marta receive from the currency exchange after the 2% fee is applied?
, , , , , , , ,
What is the median of the data shown?
Each dot in the scatterplot above represents the temperature and the number of people who visited a beach in Lagos, Nigeria, on one of eleven different days. The line of best fit for the data is also shown. The line of best fit for the data has a slope of approximately 57. According to this estimate, how many additional people per day are predicted to visit the beach for each 5°C increase in average temperature?
Which of the following statements about the means and medians of data set A and data set B is true?