Questions 2-8. Consider the variation of temperature with altitude depicted in the graph below. Variation of temperature (°F) with altitude 62.0 60.0 | 0, 60.0 58.0 56.0 54.0 52.0 50.0 48.0 46.0 5000, 42.0 44.0 42.0 40.0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 altitude (feet above sea level) What is the dependent variable? temperature altitude variation degrees celsius Temperature

One hundred students in a statistics course kept track of the time they spent on social media over the weekend. Each student recorded his or her time rounded to the nearest minute, so each observation is a whole number. The data are presented in the form of a frequency histogram. 26 25- 20 20- 16 15 14 12 10- 120 150 I80 210 30 Minutes on social media Each interval on the histogram contains the left endpoint, except for the last bar, which contains both the left and right endpoints. Give the lower and upper bound for the median number of minutes spent on social media over the weekend by the students enrolled in the class. The lower bound is the largest number that is less than or equal to the median, and the upper bound is the smallest number that is greater than or equal to the median. lower bound = 60 upper bound = 85 Kouanbasg

Graph A Time (h) Graph B Time (h) Graph C Time (h) 2. Graphs A, B, and C show the amount of gasoline in a car's tank over time. Describe the rate of change for each graph. Tell what it could represent. Graph A: ● Graph B: Graph C:

Evan is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. Brightness Level (x) 17 26 30 35 36 37 45 94 Hours (y) 6.7 5.9 5.8 4.5 6.8 6.1 3.8 2.1   10203040506070809010011012345678910-1Brightness LevelHours a) Find the equation for the line of best fit. Keep at least 4 decimals for each parameter in the equation.    b) Interpret the slope in context. Evan should expect -0.0604 hours per brightness level. Evan should expect -0.0604 brightness level per hour.   c) What does the equation predict for the number of hours the phone will last at a brightness level of 36?  hours