Two drains in Bill's house were clogged. After considering the selection of drain cleaners at the hardware store, Bill chose a brand that claimed to be effective with just one use. Back at home, Bill eventually had to use the cleaner three times before the drains cleared, but he was still satisfied with the product.
Which of the following correctly describes the sample?
- The products Bill chose
- All of the different types of drain cleaning products
- The number of drains the product's manufacturer tested
- The number of times it takes for Bill's drains to unclog
Mike was the director of admissions at a university. He wanted to learn more about the gender of applicants, what majors were most popular, and the age groups of learners applying to the university.
Mike wants to create either a bar graph or a histogram for his data. For what data would the histogram be the best way to represent Mike's information?
- The gender of applicants
- The majors that are most popular
- The age groups of learners applying for admission
- All of the data is best graphed using a histogram
In a normal distribution, which statementbest describesthe relationship betweenmean, median, and mode?
- The mode will always be the smallest value, while the mean and median will be the same.
- The mean, median, and mode will all be in the middle of the distribution.
- The mean will be in the center of the distribution and the mode and median may be higher or lower than the mean.
- The mode and median will fall in the center of the distribution and the mean will be larger than both.
Question 18 O Mark this question Which statement explains what the slope tells you about the variables in this graph? TIME SPENT STUDYING VERSUS PERFORMANCE ON EXAM 100 90 80 Score on Exam (Percent) Time Spent Studying (hours) O The graph shows that for each hour spent studying, performance on the exam will increase. The graph shows that there is a negative relationship between time spent studying and exam O performance. The graph shows that for each percent increase of an exam score, the time spent studying will O decrease. O The graph shows that poor performance in the exam is related to excess studying.Question 18 O Mark this question Which statement explains what the slope tells you about the variables in this graph? TIME SPENT STUDYING VERSUS PERFORMANCE ON EXAM 100 90 80 Score on Exam (Percent) Time Spent Studying (hours) O The graph shows that for each hour spent studying, performance on the exam will increase. O The graph shows that there is a negative relationship between time spent studying and exam performance. The graph shows that for each percent increase of an exam score, the time spent studying will O decrease. O The graph shows that poor performance in the exam is related to excess studying.Question 15 O Mark this question This graph shows the number of Camaros sold by season in 2016. NUMBER OF CAMAROS SOLD SEASONALLY IN 2016 60,000 50,000 40,000 Number of Sales 30,000 20,000 10,000 Winter Spring Summer Fall Season What type of data does this graph represent? O Ratio O Nominal O Ordinal O IntervalThe data on this graph represents the number of sales for several types of vehicles in 2015. FREQUENCY OF CAR SALES 2500 2250 2000 1750 1500 1250 Number of Sales 1000 750 500 250 0 Ferrari FF 458 Spyder Ferwai LaFerrari Car Model Which vehicle represents the mode? O Ferrari FF O 458 Spider OF12berlinetta O Enzo O Ferrari LaFerrari SAVE AND CONTINUEWhich statement best describes the strength, direction, and correlation coefficient of the scatter plot shown here? . . O The strength is weak, the direction is positive, and the correlation coefficient is close to 0. O The strength is strong, the direction is negative, and the correlation coefficient is close to 1. The strength is strong, the direction is negative, and the correlation coefficient is close to 0. O The strength is strong, the direction is positive, and the correlation coefficient is close to 1.Question 3 O Mark this question The data set below represents the heights (in inches) of students in a particular high school class: 72 67 62 64 59 71 62 66 67 75 67 62 What is the range of the data set? O 16 inches O 75 inches 12 inches O 18 inches