A group of 200 students were asked whether they have a curfew and whether they have chores at home. Their responses are summarized in the following table.Have chores Don't have choresHave a curfew 29 33Don't have a curfew 61 77(a) What percentage of the students have a curfew? %(b) What percentage of the students don't have chores? %(c) What percentage of the students who don't have chores have a curfew? %(d) Is there evidence that students who don't have chores tend to have a curfew more often than average? No, because the percentage found in part (c) is about the same as the percentage found in part (a). No, because the percentage found in part (c) is about the same as the percentage found in part (b). Yes, because the percentage found in part (c) is much greater than the percentage found in part (a). Yes, because the percentage found in part (c) is much greater than the percentage found in part (b).ExplanationCheck

Students were surveyed and asked 2 questions.  All of the data  collected from the survey is presented in the two-way frequency table below.How many of the students surveyed said they have chores?

Researchers asked 200 families whether or not they were homeowners and how many cars they had. Their responses are summarized in the following table.  No car or one car Two or more carsHomeowner 12 78Not a homeowner 42 68(a) What percentage of the families are homeowners?%(b) What percentage of the families have two or more cars?%CheckSave For LaterSubmit Assignment

In a survey, 100 people were asked if they smoke and whether or not they exercise regularly (more than twice a week). The results are summarized in the table below.  Smoke Do not smokeExercise regularly 4 17Do not exercise regularly 21 58(a) What percentage of the people do not exercise regularly?(b) What percentage of the people smoke?

Of all the children living in Country M in 1989, 24 percent had access to a computer at home and 18 percent used a computer at home. What percent of children who had access to a computer at home did not use a computer at home?

Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (a)Fill in the blanks in the table.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (b)What percent of students take exactly two courses? %Part (c)What percent of students take one or two courses? %