Which of the following could be the answer to a statistical question? А 10
B Yes
C "December 18th"
D 2. 18. 32. and 40"
help I will mark you ​

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)