Answer: The best answers are :
- A Data are gathered during the course of the study
- E. Statistical analysis is applied to the results of the study
- D. Replication with different groups of subjects can improve the reliability of the study.
Step-by-step explanation:
I hope it helps :)
Answer:
i. Time = 2 hours.
ii. Average speed for the whole journey = 25 km/h
Step-by-step explanation:
Distance from Antville to Beetleton = 60 km
Mr. Caterpillar's speed = 30 km/h
Speed =
⇒ time =
=
= 2
time = 2 hours
It would take Mr. Caterpillar 2 hours to travel from Antville to Beetleton at that speed.
On his return journey, his average speed is 20 km/h. Therefore;
average speed for the whole journey =
=
= 25
average speed for the whole journey = 25 km/h
Answer:b
Step-by-step explanation:you welcome and thank you
Your answer would be 24 and 168
take the 48 and divide by 4 to get the 1st one then just multiply 24 by 7 and you get 168