A student tossed a coin five times and observed results of four tails and one head. He concluded that when a coin is tossed, there is an 80% chance of getting a tail and a 20% chance of getting a head. The conclusion would be more valid if

a. only two tosses of the coin had been used.
b. the weight of the coin had been taken into consideration
c. a greater number of tosses had been used
d. the surface of the coin landed on had been taken in consideration.


Answer: c. a greater number of tosses had been used

Biology & Microbiology

You might also like to view...

The concept of a species was proposed by

A. Charles Darwin. B. John Ray. C. Carolus Linneaus. D. Erasmus Darwin. E. George Cuvier.

Biology & Microbiology

Which of the following bones in the lower leg has no counterpart in the lower arm?

a. tibia b. fibula c. patella d. tarsals e. metatarsals

Biology & Microbiology

In which phase of translation are peptide bonds formed?

a. replication

b. transcription c. initiation d. elongation e. termination

Biology & Microbiology

Which of the following methods of microbial control is mismatched?

A. Autoclaving nutrient agar before pouring into Petri plates - sterilization B. Exposure of surgical equipment to ultraviolet light - radiation C. Heating a liquid to 71.6°C for 15 seconds - pasteurization D. Pickling eggs - osmotic pressure

Biology & Microbiology