The time between arrivals of small aircraft at a county airport is exponentially distributed with a mean of one hour. round the answers to 3 decimal places. (a) what is the probability that more than three aircraft arrive within an hour? enter your answer in accordance to the item a) of the question statemententry field with incorrect answer 0.05 (b) if 30 separate one-hour intervals are chosen, what is the probability that no interval contains more than three arrivals? enter your answer in accordance to the item b) of the question statemententry field with incorrect answer 0.2161 (c) determine the length of an interval of time (in hours) such that the probability that no arrivals occur during the interval is 0.34.

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: