A coin is biased with a chance of getting tails for every random toss. Estimate the probability of getting exactly 55 heads in 100 tosses of a coin.
A number cube is rolled 127 times. The results are recorded in the following table. What is the experimental probability of rolling a number greater than 4?
A survey of 92 people found that 55 people support Team A, 30 people support Team B, and 7 people support neither. What is the probability that a person supports Team A?
A sample of 64 people found that 36 of them watch Channel A, 29 of them watch Channel B, and 11 watch both channels. What is the probability that a random person from the sample only watches Channel A?
A factory produces two types of televisions and wants to decide how many of each to produce. The table shows the sales of a sample of 50 TV sets from each of 5 shopping malls. If the factory is going to produce 6 000 TV sets in total, how many should be of Type B?
|Number of Shopping Mall||1||2||3||4||5|
|Sales of Type A||16||36||34||14||15|
|Sales of Type B||34||14||16||36||35|
A company that manufactures light bulbs tests a sample of 1000 light bulbs to determine their lifespan. The results are shown in the table. What is the probability that a light bulb lasts at least 400 hours?
|(Maximum Working Hours)||Less than 150||More than 1000|
|Number of Lamps||100||320||270||310|
Three fair coins are flipped. What is the probability that as many heads as tails appear?
A life insurance company used a sample of 4 000 men between the ages of 50 and 60 to find the probability of a man dying between these ages. Given that 17 men in the sample died, calculate the experimental probability of a man dying between the ages of 50 and 60.