A coin is flipped 40 times, it lands on heads 16 times. How many heads would you predict for 200 flips?
A coin is flipped 40 times, it lands on heads 16 times. How many heads would you predict for 200 flips?
According to a newly published report approximately 43% of adults say filing their tax paperwork is worse than a trip to the dentist.If a random sample of 200 is chosen, the probability that at least...
The sum is greater than 8 and divisible by 6
Historically, a production line produces 6% defective items. The production supervisor takes a sample of 100 items frequently and if he finds 8 or more defective products, he stops the line to make...
4 fair coins are simultaneously flipped and 1 fair 4-sided die (with numbers 1-4 on the faces) is tossed. What is the probability that the number of heads is equal to the number that comes up on the...
A study about the students graduating within 4 years of their entrance to the universities indicated that 62% of the students do not graduate within 4 years. Suppose a random sample of 500 students...
4 fair coins are simultaneously flipped and 1 fair 4-sided die (with numbers 1-4 on the faces) is tossed. What is the probability that the number of heads is equal to the number that comes up on the...
Such that the z score lies to left of the mean and the area between it and the mean is 0.2704
What is the probability that your estimate, ??¯, will be within $200 range of the actual mean income of Arizonans i.e. P(27000-200≤ ??¯≤ 27000 + 200) = P(26800 ≤ ??¯≤ 27200)?
The proportion of people who are going to vote for party i is represented by ρi. Suppose that there are two political parties namely A and B. ρa and ρb are uniformly distributed. Also assume that...
The average life of a battery used in newly designed electric cars is 150 hours with a standard deviation of 20hours. Suppose these values are true for all batteries of this type so that these values...
Based on a report, 55% of the voters believe that the nation's current economic problems are the result of recession that started during the Bush administration. A new Rasmussen Reports national telephone...
A study about the students graduating within 4 years of their entrance to the universities indicated that 62% of the students do not graduate within 4 years. Suppose a random sample of 500 students...
Antonella has 5 different T-shirts that she can hand out to 3 different people. If each person gets only 1 T-shirt, how many different combinations of T-shirts are possible?
According to a newly published report approximately 43% of adults say filing their tax paperwork is worse than a trip to the dentist. If a random sample of 200 is chosen, the probability that at least...
Find Pr[{O1}]
A local car dealership has the following cars on its lot: 22 Honda SUVs, 47Honda sedans, 15 Ford SUVs, and 36 Ford sedans. You win a raffle that lets you drive away one of these vehicles for free...
In a survey of 300 individual investors regarding subscriptions to the New York Times (NYT), Wall Street Journal (WSJ), and USA Today (UST), the following data were obtained. 120 subscribe to...
(i) If volume is high this week, then next week it will be high with a probability of 0.9 and low with a probability of 0.1. (ii) If volume is low this week then it will be high next week with...
The production manager of a bottling plant has acquired new machines to fill beverage cans. The machines are used to fill 16 ounce cans. If the filling machine is working properly, the mean fill volume...