stats
posted by Keisha .
Time taken in mins for student to walk to school.
15 mins (4 students)
610 mins (7 students)
1115 mins (10 students)
1620 mins (20 students)
2125 mins (6 students)
2630 mins (3 students)
1)Estimate the probability that a student selected at random will take at least 21 mins to walk to school
2)The time to nearest minute taken by each of 2 other students to walk to school in 33 mins and state the interval in which this would lie

1) (6+3)/(4+7+10+20+6+3)
2) What do you mean by "each of the other two students?" Other than what? According to your table, no student takes longer than 30 minutes to walk to school.