Math  /  Data

QuestionCalculate the estimated mean revision time for 120 students given the following time intervals and frequencies:
0<t150<t \leq 15: 0, 15<t3015<t \leq 30: 20, 30<t4530<t \leq 45: 50, 45<t6045<t \leq 60: 50.

Studdy Solution
Calculate the mean time spent revising maths.
Meantime=4950120=41.25Mean\, time = \frac{4950}{120} =41.25The estimated mean time spent revising maths is41.25 minutes.

View Full Solution - Free
Was this helpful?

Studdy solves anything!

banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ParentsInfluencer programContactPolicyTerms
TwitterInstagramFacebookTikTokDiscord