The population of City A increased by from to . If the population is times the population, what is the value of ?
277 items match · Math · Problem-Solving and Data Analysis
Open
The mean score of 8 players in a basketball game was 14.5 points. If the highest individual score is removed, the mean score of the remaining 7 players becomes 12 points. What was the highest score?
The scatterplot above shows a company’s ice cream sales d, in dollars, and the high temperature t, in degrees Celsius (°C), on 12 different days. A line of best fit for the data is also shown. Which of the following could be an equation of the line of best fit?
A cherry pitting machine pits pounds of cherries in minutes. At this rate, how many minutes does it take the machine to pit pounds of cherries?
A kangaroo has a mass of kilograms. What is the kangaroo's mass, in grams?
The glass pictured above can hold a maximum volume of 473 cubic centimeters, which is approximately 16 fluid ounces. Jenny has a pitcher that contains 1 gallon of water. How many times could Jenny completely fill the glass with 1 gallon of water?
What is of ?
A bag containing 10,000 beads of assorted colors is purchased from a craft store. To estimate the percent of red beads in the bag, a sample of beads is selected at random. The percent of red beads in the bag was estimated to be 15%, with an associated margin of error of 2%. If r is the actual number of red beads in the bag, which of the following is most plausible?
In the table above, Melissa recorded the price of one gallon of regular gas from five different local gas stations on the same day. What is the median of the gas prices Melissa recorded?
Which of the following represents the result of increasing the quantity x by 9%, where ?
An object travels at a constant speed of centimeters per second. At this speed, what is the time, in seconds, that it would take for the object to travel centimeters?
The table shows the distribution, by location and power capacity (maximum rate of power generation) of the twenty largest wind projects in the United States in 2013. The total power capacity of the nine wind projects located in Texas was 4,952 megawatts (MW), and the total power capacity of the twenty wind projects was 11,037 MW in 2013. The amount of energy produced in one hour at a rate of one megawatt is one megawatt-hour. If each of the nine Texas wind projects in 2013 had operated continuously for 24 hours at the maximum rate of power generation, approximately how many megawatt-hours of energy would the nine projects have produced?
If and , what is the value of ?
The number k is 36% greater than 50. If k is the product of 50 and r, what is the value of r ?
The weight of an object on Venus is approximately of its weight on Earth. The weight of an object on Jupiter is approximately
of its weight on Earth. If an object weighs 100 pounds on Earth, approximately how many more pounds does it weigh on Jupiter than it weighs on Venus?
For which of the following data sets is the mean greater than the median?
| Phone | ||
|---|---|---|
| Dinner dance | 55% | 80% |
| Football game | 20% | 10% |
| Picnic | 20% | 5% |
| Pool party | 5% | 5% |
| Total | 100% | 100% |
An alumni association survey asked each high school graduate to select the one activity he or she preferred for the association’s next event. Some of the people responded by phone, and the others responded by email. The table above shows the distribution of preferred activity, in percent, for each response type used. For the survey, the number of email responses was twice the number of phone responses. If a person who preferred a picnic is selected at random, what is the probability that the person responded by email?
Each dot in the scatterplot above represents the height x, in feet, in the high jump, and the distance y, in feet, in the long jump, made by each student in a group of twenty students. The graph of which of the following equations is a line that most closely fits the data?
The table shows the frequency of values in a data set.
| Value | Frequency |
|---|---|
What is the minimum value of the data set?
The results of two random samples of votes for a proposition are shown above. The samples were selected from the same population, and the margins of error were calculated using the same method. Which of the following is the most appropriate reason that the margin of error for sample A is greater than the margin of error for sample B?
- For the dot plot titled Class A:
- The number line ranges from 1 to 7 in increments of 1.
- The data for the dot plot are as follows:
- 1: 1 dot
- 2: 1 dot
- 3: 3 dots
- 4: 4 dots
- 5: 5 dots
- 6: 6 dots
- 7: 7 dots
- For the dot plot titled Class B:
- The number line ranges from 14 to 20 in increments of 1.
- The data for the dot plot are as follows:
- 14: 1 dot
- 15: 1 dot
- 16: 3 dots
- 17: 4 dots
- 18: 5 dots
- 19: 6 dots
- 20: 7 dots
Each of the dot plots shown represents the number of glue sticks brought in by each student for two classes, class A and class B. Which statement best compares the standard deviations of the numbers of glue sticks brought in by each student for these two classes?
One of a planet's moons orbits the planet every days. A second moon orbits the planet every days. How many more days does it take the second moon to orbit the planet times than it takes the first moon to orbit the planet times?
The density of a certain type of wood is kilograms per cubic meter. A sample of this type of wood is in the shape of a cube and has a mass of kilograms. To the nearest hundredth of a meter, what is the length of one edge of this sample?
How many feet are equivalent to yards?
A list of data values is shown.
, , , , , , , , ,
What is the mean of these data?