Box Plots — Cumulative exam Answers

The two-way table represents data from a survey asking students whether they plan to attend college, travel, or both after high school. Which is the marginal relative frequency for students who plan to attend college? Round the answer to the nearest percent.

Which is the graph of f(x) = (x + 3)(x – 2)?

Which polynomial is prime?

What is the difference of the polynomials?(5x3 + 4x2) – (6x2 – 2x – 9)

The histogram shows the weights, in pounds, of checked luggage on a flight.

The two-way table represents data from a survey asking teachers whether they teach English, math, or both. Which is the joint relative frequency for teachers who teach math and not English? Round the answer to the nearest percent.

What does a residual value of 1.3 mean when referring to the line of best fit of a data set?

The relative frequency table shows the results of a survey in which parents were asked how much time their children spend playing outside and how much time they spend using electronics.Given that a child spends at least 1 hour per day outside, what is the probability, rounded to the nearest hundredth if necessary, that the child spends less than 1 hour per day on electronics?

What is the midpoint of the x-intercepts off(x) = (x – 4)(x + 4)?

The histogram shows the duration, in minutes, of movies in theaters.

The quadratic model f(x) = –5x2 + 200 represents the approximate height, in meters, of a ball x seconds after being dropped. The ball is 50 meters from the ground after about how many seconds?

Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4.

Which is a zero of the quadratic function f(x) = 4x2 + 24x + 11?

Susu is solving the quadratic equation 4x2-8x-13=0 by completing the square. Her first four steps are shown in the table.

64, –48, 36, –27, ...

The graph of which function has a minimum located at (4, –3)?

Which sample fairly represents the population? Select two options.using a yearbook to determine the most popular names for girls in the United Statesasking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercisescalling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral racesending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfactiontaking a poll in the main hallway between classes to determine the number of students who would be interested in a school trip to New York City

What is the discriminant of the quadratic equation 2x + 5x2 = 1?

Sabrina is tracking the growth rates of a colony of ants and of a bee hive. From her research, she has developed a function to represent the population growth of each type of insect, where y represents the population and x represents the number of weeks since Sabrina began her research. Ant Colony Growth: Bee Hive Growth: Which insect population is growing at a faster rate?

What is the coefficient of x after simplifying (−x−5)2?