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The table above lists the lengths, to the nearest inch, of a random sample of 21 brown bullhead fish. The outlier measurement of 24 inches is an error. Of the mean, median, and range of the values listed, which will change the most if the 24-inch measurement is removed from the data?
The dots above indicate senior GPAs at two schools in the same district, School A and School B. Each dot represents 5 students and each school has 100 seniors. Which of the following correctly compares the standard deviation of the scores in each of the classes?
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 table below presents the frequency of hours spent on homework per week by students in two different classes:
Each class consists of 30 students. The table shows the frequencies of the hours spent on homework for each class. Which of the following statements best compares the central tendency of the homework hours for the two classes?
Data set X consists of the weights of 60 animals and has a mean of 20 kilograms.
Data set Y consists of the weights of 90 animals and has a mean of 40 kilograms.
Data set Z consists of the weights of the 150 animals from data sets X and Y.
What is the mean, in kilograms, of data set Z?
The table above represents the SAT scores of a representative class of students that took SAT prep classes at MJ Test Prep. Based on the above data, what is the average SAT score of students in the class at MJ Test Prep, rounded to the nearest 10th?
In a market where approximately 44% of all book purchases are made online, customer reviews are extremely important from a sales and marketing perspective. Early reviews are most important, as they help or hinder a book’s momentum in the marketplace. The frequency table shown above gives the first 20 customer ratings for a certain book sold online. What is the mean rating for this book?
Based on the histogram above, of the following, which is closest to the average (arithmetic mean) number of seeds per apple?
A bag of jellybeans has 20 watermelon jellybeans, 45 sour apple jellybeans, 30 orange jellybeans, and 5 cotton candy jellybeans. If you reach in and grab one jellybean, what is the probability that it will be watermelon favored?
The table above summarizes the results of 200 law school graduates who took the bar exam. If one of the surveyed graduates who passed the bar exam is chosen at random for an interview, what is the probability that the person chosen did not take the review course?
A group of tenth-grad students responded to a survey that asked which math course they were currently enrolled in. The survey data were broken down as shown in the table above. Which of the following categories accounts for approximately 19 percent of all the survey respondents?
A bag contains 5 red marbles, 3 green marbles, and 2 blue marbles. If a marble is randomly selected from the bag, what is the probability that the marble is either red or blue?
A lacrosse team raised some money. The members used 74% of the money to buy uniforms, 18% for equipment, and the remaining $216 for a team party. How much money did the team raise?
An art dealer bought a painting for $1000 and later sold it for $10,000. By what percent did the value of the painting increase?
There are twice as many girls as boys in an English class. If 30% of the girls and 45% of the boys have already handed in their book reports, what percent of the students have not yet handed in their reports?
In the figure above, lines l and m are parallel and lines s and t are parallel. If the measure of \(\angle1\) is 35°, what is the measure of \(\angle2\)?
In the figure above, which of the following is the greatest?
In the figure above, if BE and FI are parallel, what is x?
In the circle above, arc WXY is \(6\mathrm\pi\) in length. If \(\angle WXY\) is 72°, what is the radius of the circle?
In the figure above, rectangle ABCD is inscribed in the circle with center O. What is the area of the circle?
What is the area of the shaded sector of the circle shown in the figure above?
A right triangle has leg lengths of 18 and 24 and a hypotenuse of 15n. What is the value of n?
In the figure shown, \(\bigtriangleup ABC\sim\bigtriangleup DBE\). What is the length of \(\overline{BE}\)?
A summer camp counselor wants to find a length, x, in feet, across a lake as represented in the sketch above. The lengths represented by AB, EB, BD, and CD on the sketch were determined to be 1800 feet, 1400 feet, 700 feet, and 800 feet, respectively. Segments AC and DE intersect at B, and \(\angle AEB\) and \(\angle CDB\) have the same measure. What is the value of x ?