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Mathematics, 12.12.2021 01:50, mszeew
Use the fact that the mean of a geometric distribution is u = - and the variance is o2
9
2
1
A daily number lottery chooses two balls numbered 0 to 9. The probability of winning the lottery is Let x be the
100
number of times you play the lottery before winning the first time.
(a) Find the mean, variance, and standard deviation. (b) How many times would you expect to have to play the lottery
before winning? It costs $1 to play and winners are paid $900. Would you expect to make or lose money playing this
lottery? Explain.
(a) The mean is - (Type an integer or a decimal.)
The variance is (Type an integer or a decimal.)
The standard deviation is I
(Round to one decimal place as needed.)
(b) You can expect to play the game times before winning
Would you expect to make or lose money playing this lottery? Explain.
times you play. So the net
O A. You would expect to lose money. On average you would win $900 once in every
gain would be $
O B. You would expect to make money. On average you would win $900 once in every
gain would be $
times you play. So the net
Answers: 3
Mathematics, 21.06.2019 17:30, lamanihill
Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?
Answers: 1
Mathematics, 21.06.2019 21:30, amesha62
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
Mathematics, 22.06.2019 06:00, LadyHolmes67
If it worker is paid $8.16 per hour and worked 8.5 hours in one week how much is he or she paid for that week
Answers: 1
Use the fact that the mean of a geometric distribution is u = - and the variance is o2
9
2
2
Mathematics, 11.03.2021 22:40
English, 11.03.2021 22:40
Mathematics, 11.03.2021 22:40
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