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The density of a certain type of wood is 353 kilograms per cubic meter. A sample of this type of wood is in the shape of a cube and has a mass of 345 kilograms. To the nearest hundredth of a meter, what is the length of one edge of this sample?
MathProblem-Solving and Data Analysis
Sample Percent in Favor Margin of Error
A 52% 4.2%
B 48% 1.6%
 
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?
MathProblem-Solving and Data Analysis
For which of the following data sets is the mean greater than the median?
MathProblem-Solving and Data Analysis
The weight of an object on Venus is approximately $\frac{9}{10}$ of its weight on Earth. The weight of an object on Jupiter is approximately $\frac{23}{10}$ 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?
MathProblem-Solving and Data Analysis
The number $k$ is 36% greater than 50. If $k$ is the product of 50 and $r$, what is the value of $r$ ?
MathProblem-Solving and Data Analysis
State Power capacity
Low Medium High Total
Texas 4 2 3 9
California 1 0 1 2
Oregon 1 0 1 2
Indiana 0 2 0 2
Colardado 1 1 0 2
Iowa 2 0 0 2
Oklahoma 1 0 0 1
Total 10 5 5 20
 
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?
MathProblem-Solving and Data Analysis
An object travels at a constant speed of 12 centimeters per second. At this speed, what is the time, in seconds, that it would take for the object to travel 108 centimeters?
MathProblem-Solving and Data Analysis
Which of the following represents the result of increasing the quantity $x$ by 9%, where $x>0$ ?
MathProblem-Solving and Data Analysis
Station 1 Station 2 Station 3 Station 4 Station 5
$3.699 $3.609 $3.729 $3.679 $3.729

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?
MathProblem-Solving and Data Analysis
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?
MathProblem-Solving and Data Analysis
What is 10% of 470?
MathProblem-Solving and Data Analysis
A kangaroo has a mass of 28 kilograms. What is the kangaroo's mass, in grams? (1 kilogram = 1,000 grams)
MathProblem-Solving and Data Analysis
A cherry pitting machine pits 12 pounds of cherries in 3 minutes. At this rate, how many minutes does it take the machine to pit 96 pounds of cherries?
MathProblem-Solving and Data Analysis
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?
MathProblem-Solving and Data Analysis
The population of City A increased by 7% from 2015 to 2016. If the 2016 population is $k$ times the 2015 population, what is the value of $k$?
MathProblem-Solving and Data Analysis
Two different teams consisting of 10 members each ran in a race. Each member's completion time of the race was recorded. The mean of the completion times for each team was calculated and is shown below.

Team A: 3.41 minutes

Team B: 3.79 minutes

Which of the following MUST be true?

I. Every member of team A completed the race in less time than any member of team B.

II. The median time it took the members of team B to complete the race is greater than the median time it took the members of team A to complete the race.

III. There is at least one member of team B who took more time to complete the race than some members of the team
MathProblem-Solving and Data Analysis
Tanya earns $\$13.50$ per hour at her part-time job. When she works $z$ hours, she earns $13.50z$ dollars. Which of the following expressions gives the amount, in dollars, Tanya will earn if she works $3z$ hours?
MathProblem-Solving and Data Analysis
A band with 45 members has 11 members who play saxophone. If one band member is selected at random, what is the probability of selecting a band member who plays saxophone?
MathProblem-Solving and Data Analysis
Value Frequency
1 $a$
2 2$a$
3 3$a$
4 2$a$
5 $a$
The frequency distribution above summarizes a set of data, where $a$ is a positive integer. How much greater is the mean of the set of data than the median?
MathProblem-Solving and Data Analysis
$$2, 9, 14, 23, 32$$

What is the mean of the data shown?
MathProblem-Solving and Data Analysis
Texting behavior Talks on cell phone daily Does not talk on cell phone daily Total
Light 110 146 256
Medium 139 164 303
Heavy 166 74 240
Total 415 384 799
In a study of cell phone use, 799 randomly selected US teens were asked how often they talked on a cell phone and about their texting behavior. The data are summarized in the table above. If one of the 799 teens surveyed is selected at random, what is the probability that the teen talks on a cell phone daily?
MathProblem-Solving and Data Analysis
Which expression represents the result of increasing a positive quantity $w$ by $43\%$?
MathProblem-Solving and Data Analysis
A random sample of 50 people from a town with a population of 14,878 were asked to name their favorite flavor of ice cream. If 7 people in the sample named chocolate as their favorite ice-cream flavor, about how many people in the town would be expected to name chocolate?
MathProblem-Solving and Data Analysis
Shaguan has 7 red cards and 28 blue cards. What is the ratio of red cards to blue cards that Shaquan has?
MathProblem-Solving and Data Analysis
Rectangle $A$ has length 15 and width $w$. Rectangle $B$ has length 20 and the same length-to-width ratio as rectangle $A$. What is the width of rectangle $B$ in terms of $w$ ?
MathProblem-Solving and Data Analysis