Based on a poll,
6060 %
of adults believe in reincarnation. Assume that
66
adults are randomly selected, and find the indicated probability. Complete parts (a) through (d) below.
a. What is the probability that exactly
55
of the selected adults believe in reincarnation?The probability that exactly
55
of the
66
adults believe in reincarnation is
0.1870.187.
(Round to three decimal places as needed.)
b. What is the probability that all of the selected adults believe in reincarnation?
The probability that all of the selected adults believe in reincarnation is
nothing
In: Statistics and Probability
A population proportion is 0.59. Suppose a random sample of 663 items is sampled randomly from this population. Appendix A Statistical Tables a. What is the probability that the sample proportion is greater than 0.60? b. What is the probability that the sample proportion is between 0.54 and 0.64? c. What is the probability that the sample proportion is greater than 0.57? d. What is the probability that the sample proportion is between 0.52 and 0.55? e. What is the probability that the sample proportion is less than 0.50?
In: Statistics and Probability
A population proportion is 0.60. Suppose a random sample of 660 items is sampled randomly from this population. Appendix A Statistical Tables a. What is the probability that the sample proportion is greater than 0.62? b. What is the probability that the sample proportion is between 0.56 and 0.62? c. What is the probability that the sample proportion is greater than 0.59? d. What is the probability that the sample proportion is between 0.58 and 0.59? e. What is the probability that the sample proportion is less than 0.51?
In: Statistics and Probability
An experiment is planned where an automatic lab would be sent to the surface of Saturn. If there was life in Saturn, the probability that the lab detects it and correctly reports the finding is 0.5. If there never was life on Saturn, the probability that the lab will erroneously indicate the presence of life is 0.45. Suppose that a fair assessment of the probability that life was ever present on Saturn is 0.1.
(a) Find the probability that the lab says that there was life on Saturn.
(b) If the lab says that there was life on Saturn, what is the probability that the lab is correct (that is, that indeed there was life in Saturn)?
In: Statistics and Probability
Object E is dependent on Objects A and B.
P(A works) = 0.90
P(A fails) = 0.10
P(B works) = 0.90
P(B fails) = 0.10
If Object A works, then Probability of Object E working is 0.6
If Object A fails, then Probability of Object E working is 0.2
If Object B works, then Probability of Object E working is 0.6
If Object B fails, then Probability of Object E working is 0.2
What is the Probability of Object E working?
In: Statistics and Probability
Customers arrive at a local ATM at an average rate of 14 per hour. Assume the time between arrivals follows the exponential probability distribution. Determine the probability that the next customer will arrive in the following time frames.
a) What is the probability that the next customer will arrive within the next 2 minutes?
b) What is the probability that the next customer will arrive in more than 15 minutes?
c) What is the probability that the next customer will arrive between 8 and 13 minutes?
In: Math
A recent survey examined the use of social media platforms. Suppose the survey found that there is a 0.61 probability that a randomly selected person will use Facebook and a 0.28 probability that a randomly selected person will use LinkedIn. In addition, suppose there is a 0.26 probability that a randomly selected person will use both Facebook and LinkedIn.
(a)
What is the probability that a randomly selected person will use Facebook or LinkedIn?
(b)
What is the probability that a randomly selected person will not use either social media platform?
In: Finance
A loaded dice with the probability of rolling a one is 31
percent. You roll the die a total of 7 times. (Answer using a
decimal correct to three places.)
a)Find the probability of rolling no ones.
b)Find the probability of rolling exactly 3 ones.
c)Find the probability of rolling 3 or 4 ones.
In: Statistics and Probability
Suppose that the mean weight of infants born in a community is μ
= 3230 g and σ2 = 409600.00 g.
Compute the indicated probabilities below.
a) p(x <
3000)
probability =
b) p(x >
4600)
probability =
c) p(2300 < x <
4100)
probability =
d) p(1700 < x <
3100)
probability =
In: Statistics and Probability
Suppose that the mean weight of infants born in a community is μ = 3350 g and σ = 750 g. Compute the indicated probabilities below.
a) p(x < 2800) probability =
b) p(x > 4200) probability =
c) p(2400 < x < 4100) probability =
d) p(2300 < x < 2800) probability =
In: Statistics and Probability