Question

28.

Four groups of students spun the same two-color spinner with the outcomes shown in the table. Which percentage is most likely to be the portion of the spinner painted red?

29.

Which best demonstrates statistical inference? 

A. If logs are cut 6 yards long plus/minus 1 foot, all logs cut are longer than 5.5 yards.

B. From time to time light bulbs are picked from the conveyor belt for testing. Since 0.001% of them are faulty, it is concluded that 1 out of 100,000 produced light bulbs is faulty 

C. If Gregory shoots 50% from the free throw line, his teammates shoot between 45% and 55% . 

D. If about 10% of randomly selected bicycles have underinflated tires, it can be concluded that about 10% of cars have underinflated tires. 

Answer 1