Consider these functions from the set of teachers in a school. Under what conditions is the function one-to-one if it assigns to a teacher his or hera) office.b) assigned bus to chaperone in a group of buses taking students on a field trip.c) salary.d) social security number.

a. Find the absolute and relative change for the number of refugee arrivals into the US from 2011to 2017. Interpret these numbers in asentence. Number of refugee arrivals vach year into the U.S. 150 thousand 97 100 50 28 1982 1990 2000 2010 2017* Global refugee population 20 million 17.2 m 15 10.2 m 10 ..... 1982 1990 2000 2010 2017*

Another term used to describe intervening relations is   a. unusual.   b. specification.   c. interpretation.   d. direct.

Identify each of the following variables as continuous or discrete. a. The number of people in line at a box office to purchase theater tickets b. The number of socks in a drawer c. The weight of a dog d. Blood sugar level ... a. Is the variable continuous or discrete? Why? A. The number of people in line at a box office to purchase theater tickets is a continuous variable since it has a finite number of possible values. B. The number of people in line at a box office to purchase theater tickets is a discrete variable since it has an infinite continuum of possible values. C. The number of people in line at a box office to purchase theater tickets is a continuous variable since it has an infinite continuum of possible values. D. The number of people in line at a box office to purchase theater tickets is a discrete variable since it has a finite number of possible values. b. Is the variable continuous or discrete? Why? A. The number of socks in a drawer is a discrete variable since it…

Differentiate the sets (Ø) and 0.

A fast-food restaurant monitors its drive-thru Speed of Service (Time in Seconds) 110 service times electronically to ensure that its speed of service is meeting the company's goals. A sample of 16 drive-thru times was recently taken and is shown to the right. 108 101 119 120 95 123 133 112 102 116 109 101 128 100 130 a. Construct a stem and leaf diagram of the speed of service times. b. What range of time might the restaurant say is the most frequent speed of service? a. Complete the stem and leaf diagram below. 9. 10 11 12 13 (Use ascending order.) b. The range of time between seconds is the most frequent speed of service. 130 and 139 100 and 109 90 and 99 120 and 129 110 and 119 Enter your answer in each of the answer boxes.

Which of the following lines of code could generate the plot below? 700 Emm 1980 1985 1990 1995 2000 2005 2010 2015 Year Number of Movies 600 500 400 300 200 movie_by_year.line( 'Number of Movies' F 'Year') movies_by_year.line( 'Year', 'Number of Movies') movies_by_year.plot( 'Number of Movies', 'Year') movies_by_year.plot('Year', 'Number of Movies')

a.) Construct a frequency and relative frequency bar chart for the data. b.) Construct a pie chart to display the relative frequency information.

8. Which of the following represents a function? W. X. Y. Z. a. Y 9.This set of ordered pairs shows the years of some Winter Olympics and the host city in each year. Represent the relation as a table. {(1988, Calgary),(1992, Albertville),(1994, Lillehammer),(1998, Nagano), (2002, Salt Lake City), (2006, Turi b. X c. Z d. W 2010, Vancouver)} Yuar Host City Host City Year a. С. Calgar Nagano 1992 Aibertville 1994 amer 1.9 200 3aLao Cty Sat Laka Cty 2002 は Turn 2008 200 Year Host City Year Host City 1988 Cagary Calgary 1992 Albertvile Lidenamntur b. 1994 Lilehammer d. 1994 Alburtviße 1988 Nagano Nogane 2002 Sat Lake Cty 2002 Sai: Lake Cily 2006 2006 Tutin 2010 20 10 YelILUUver ESK TJadi 134213:277920 12 - T10 s ot 10.This table shows the cost, P Php, of the number of tickets sold, n. Identify the range. a. {1,2,3,4,5,...} b. (9,50,19.00,28.50,38.00,47.50,...} c. (1,2,3,4,5,9.50,19.00, 28.50,38.00,47.50} d. (1,9.50,2,19.00,3,28.50,4,38.00,5,47.50,... Number ol Tickets. Cost. P (Php) 9.50…

What is the relation between An B and AnB? Justify your