A researcher selects a random sample of 200 students to determine whether there is a relationship between the number of days a student is absent and the student's grado point average The
correlation coofficient, r, of the data is -0.765. On the basis of the correlation coofficient alone, can the
researcher conclude that an increase in the number of days a student is absont causes the student's
grades to drop?
Yes, because ris very close to -1,
No, because other factors may have influenced the student grades,
No, because ris negative,
Yes, because the students in the sample were randomly selected

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Which system of linear inequalities is represented by the graph?

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a.what is the independent and dependent variables? b.find the amplitude and the period of the function. c.create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.