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Mathematics, 23.06.2019 00:30 FAKE5979

Answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 15 points (score for question 1: of 6 points) 1. a poll asked 15 men in two age groups, 30 and younger and older than 30, whether they had facial hair (mustache, beard, sideburns, the results are recorded in the table. person age group facial hair 1 30 and younger yes 2 30 and younger no 3 older than 30 no 4 30 and younger no 5 older than 30 no 6 older than 30 yes 7 older than 30 yes 8 older than 30 no 9 30 and younger yes 10 30 and younger yes 11 older than 30 yes 12 30 and younger yes 13 older than 30 yes 14 30 and younger no 15 older than 30 yes (a) create a two-way table of the data. of the men surveyed, how many were 30 and younger? how many men did not have facial hair? (b) create a two-way relative frequency table that displays the relative frequency of the men 30 and younger and of the men older than 30 who had or did not have facial hair. express your answers as decimals written to three decimal places. (c) what percentage of men older than 30 had facial hair?two way table relative frequency table   (score for question 2: of 5 points) 2. consider this scatter plot. (a) how would you characterize the relationship between the hours spent on homework and the test scores? explain. hint: you may need to find the rate of change. (b) paul uses the function y = 8x + 40 to model the situation. what score does the model predict for 3 h of homework? (c) what does the number 40 in part (b) mean in the context of the situation?  (score for question 3: of 4 points) 3. anika is on the crew to set up rides for the state fair. the crew does most of the setup on the day that the fair arrives at the fairground and then continues to work on finishing the setup for about a week to have the rides ready to go in time for the opening of the fair. the scatter plot shows anika's setup time on different days and the linear model for the data. (a) what is the equation of the line, written in slope-intercept form? show how you determined the equation. hint: it’s a good idea to start with finding the point-slope form equation. (b) based on the linear model, predict how long anika worked on the setup crew on the day the fair arrived at the fairgrounds, day 0. approximately how much did her setup time decrease per day?

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