DLIuE whether the experiment is a binomial experiment. If it is not, explain why

Question

DLIuE whether the experiment is a binomial experiment. If it is not, explain why a number wheel that has 19 numbers 450 times. The random variable rapresent winning numbers on each spin of the whel. Not a You spin 9) the 10) Find the standard deyiation of the binomial distribution fr hich n - 1000 and p-094. 10) 11) A test consists of 700 true or false questions. If the student guesses on each question, what 11) 12) According to police sources, a car with a certain protection system will be recovered 90% of 12) re are mor 9 rt ( 1000, 0.95 x 0.06) 51 Than tw utco is the mean number of correct answers? the time. If 600 stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen? 13) A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the student guesses on each question, what is the probability that the student will pass the test? 13) 14) Find the area of the indicated region under the standard normal curve. 1 0.65 -0.450 2.11 0.8 15) 15) Find the area under the standard normal curve to the right of z =-125

Explanation / Answer

(11)

Since each question has the equal probability of being guessed right and wrong, so mean number of correct answers = 0.5*700 = 350

(12)

Given parameters:

p = 0.9, n = 600

So,

Mean, m = n*p = 600*0.9 = 540

Stadard deviation, S = (p*(1-p))0.5 = (0.9*(1-0.9))0.5 = 0.3

Hope this helps !

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