4. A telecommunications company recently launched a year long advertising campaign to promote their brand of cellular telephones. The monthly number of new cellular telephone subscribers is shown in the table. Month Number of New Subscribers 1 6 500 2 2345 7 150 7 870 4 8 650 5 9 520 67 10 470 7 11 520 8 12 670 3. 76 2 a) Calculate the first and second differences, and the ratios. b) Which model appears most suitable for the data: linear, quadratic, or exponential? Justify your answer. c) Sketch a scatter plot of the data. d) Generate a suitable model for the data. Represent the model using a graph and an equation. e) Use the graph to predict the month in which there will be approximately 15 000 new subscribers. f) Use the equation to predict the number of new subscribers in month 12.

Quantitative data consists of a) Nominal data and ordinal data b) Ratio data and nominal data c) Interval data and ordinal data  d) Ratio data and interval data

4. Use this data from the HANES5 survey to estimate the average weight of men 18 and over whose heights were 73 inches. average height: 69 inches average weight: 190 pounds r = 0.41 SD 3 inches SD 42 pounds

a) Create a frequency table to organize the data b) Create a frequency histogram for the data ( 1. Write each column- Sum, Tally, Frequency     2. Give the frequency histogram)   c) State 2 any trends, patterns or observations in this data?    ( Describe each trend in detail )   d) What proportion, as a fraction, of the data has a value of 6 or less? e) What number of data has a value of 9 or greater? f) What percentage of the data has a value of 9 or greater?

When creating the dot plot, how are multiple data points for a single score displayed? a. A larger size dot is used; the size of the dot is directly proportional to the number of data points. b. More than one dot is used; dots are placed side by side creating a wider interval. c. A dot plot is innappropriate when multiple data points exist for a single score. d. Multiple dots, representing each data point, are replaced on top of one another.

How wide is the chasm between what men and women earn in the workplace? According to a 2015 analysis from a national women's group, women lose $435,049 over the course of a career because of the pay gap. The bar graph to the right shows the average earnings in the United States for men and women at ages 22 and 60. This exercise involves the graphs of models for the data shown in the rectangular coordinate system to the right. Complete parts (a) through (c) below. Average Yearly Earnings ($1000s) Average Yearly Earnings in the U.S., by Gender and Age 70- 60- ■Men 50 Women 40- 30- 20- 10- 0- 22 Age 60 Average Yearly Earnings ($1000s) $70- $60- (30,67).. $50 (0,24) $40+ $30+ $20- $10- $0+ 0 M(age=38) = $ thousand (Type an integer or decimal rounded to one decimal place as needed.) ♦ (0,21) Men *(30,40) Women 10 20 30 40 50 Years after Age 22 --X7 (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. Use the two points for women shown on…

How wide is the chasm between what men and women earn in the workplace? According to a 2015 analysis from a national women's group, women lose $435,049 over the course of a career because of the pay gap. The bar graph to the right shows the average earnings in the United States for men and women at ages 22 and 55. This exercise involves the graphs of models for the data shown in the rectangular coordinate system to the right. Complete parts (a) through (c) below. BEEB Average Yearly Earnings in the U.S., by Gender and Age M(age=33)=$thousand (Type an integer or decimal rounded to one decimal place as needed.) Average Yearly Earnings ($1000s) 70- 60- Men 50-Women- 40- 30- 20- 10- 0- 22 Age 55 Average Yearly Earnings ($1000s) A $70 (3087) $60- $30 $20- $10- $0 } e $50 (0.23) $40 BN 9 ST (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. Use the two points for women shown on the graph to find a function in the form W(x) = mx + b that…