6b) Use the probability distribution above in order to find the STANDARD DEVIATION. &nb
6b) Use the probability distribution above in order to find the STANDARD DEVIATION.
7) A contest entrant ha a 0.0008 probability of winning a prize of $11,278. If this is the only prize and the entry fee is $35, then find the expected value of winning the contest.
8a) Suppose that the probability that a person will develop hypertension over a lifetime is 20%. If fifteen graduating students from the same college are selected at random, find the MEAN NUMBER OF THE STUDENTS who develop hypertension over a lifetime.
8b) Suppose that the probability that a person will develop hypertension over a lifetime is 20%. If fifteen graduating students from the same college are selected at random, find the STANDARD DEVIATION OF STUDENTS who develop hypertension over a lifetime.
Homework Answers
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6b) Use the probability distribution above in order to find the
STANDARD
DEVIATION. &nb
UIT WIuld mean of 3.05 and a standard deviation of 0.30. Find the probability that the...
UIT WIuld mean of 3.05 and a standard deviation of 0.30. Find the probability that the mean GPA of a random sample of 49 students selected from this university is 2.75 or lower, Round your answer to four decimal places Attach File Browse My Computer Browse Content Collection Browse Dropbox QUESTION 6 The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2.8...
16. The probability of winning on a slot machine is 800 If a person plays the...
16. The probability of winning on a slot machine is 800 If a person plays the machine 300 times, find the probability of winning at most 20 times. 17. The mean score on a dexterity test for 12-year-olds is 30. The standard deviation is 5. If a psychologist administers the test to a class of 22 students, find the probability that the mean of the sample will be between 27 and 31. Assume the variable is normally distributed. 18 The...
i need a help pleassssse? 5. What is the probability that the sum of the numbers...
i need a help pleassssse?
5. What is the probability that the sum of the numbers on two dice is even when they are rolled? 6. What is the probability that a card selected at random from a standard deck of 52 cards is an ace or a heart? What is the probability that a positive integer not exceed- 100 selected at random is divisible by 5 or 7? nd the probability of winning a lottery by selecting the t...
need answers!!! i Find the indicated probability by using the complementation rule. 13) The age distribution...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
2) Suppose the weight of a newborn baby follows a normal distribution with a mean of...
2) Suppose the weight of a newborn baby follows a normal distribution with a mean of 3500 grams and a standard deviation of 600 grams. a. What is the probability that the weight of a randomly selected newborn exceeds 4000g? b. For a random sample of 36 newborns, what is the probability that their mean weight is less than 3450g? 3) Suppose that 5% of American adults are vegetarian. Find the probability that in a random sample of 500 American...
Consider a normal distribution with mean 25 and standard deviation 5. What is the probability a...
Consider a normal distribution with mean 25 and standard
deviation 5. What is the probability a value selected at random
from this distribution is greater than 25? (Round your answer to
two decimal places.)
Assume that x has a normal distribution with the specified
mean and standard deviation. Find the indicated probability. (Round
your answer to four decimal places.)
μ = 14.9; σ = 3.5
P(10 ≤ x ≤ 26) =
Need Help? Read It
Assume that x has a...
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute
The length of time it takes college students to find a parking spot in the library parking lot follows anormal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute. Find theprobability that a randomly selected college student will take between 4.0 and 6.5 minutes to find aparking spot in the library lot.
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 4.0 minutes and a standard deviation of 1 minute
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 4.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 2.5 and 5.0 minutes to find a parking spot in the library lot.
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 7 minutes and a standard deviation of 1 minute
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 7 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parlong lot in less than 6.5 minutes.0.2674 0.3551 0.1915 0.3085
100. The probability that a house in an urban area will be burglarized is 5%. If...
100. The probability that a house in an urban area will be burglarized is 5%. If 82 houses are randomly selected, what is the probability that none of the houses will be burglarized? B) 0.001 A) 0.050 C) 0.000 D) 0.015 13. Slate wiele le Val DUI IJ UIJTUI The weight and height of a person A) discrete B) continuous 14. Classify the statement as an example of classical probability, empirical probability, or subjective probability in California's Pick Three lottery,...
UIT WIuld mean of 3.05 and a standard deviation of 0.30. Find the probability that the mean GPA of a random sample of 49 students selected from this university is 2.75 or lower, Round your answer to four decimal places Attach File Browse My Computer Browse Content Collection Browse Dropbox QUESTION 6 The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2.8...
16. The probability of winning on a slot machine is 800 If a person plays the machine 300 times, find the probability of winning at most 20 times. 17. The mean score on a dexterity test for 12-year-olds is 30. The standard deviation is 5. If a psychologist administers the test to a class of 22 students, find the probability that the mean of the sample will be between 27 and 31. Assume the variable is normally distributed. 18 The...
i need a help pleassssse?
5. What is the probability that the sum of the numbers on two dice is even when they are rolled? 6. What is the probability that a card selected at random from a standard deck of 52 cards is an ace or a heart? What is the probability that a positive integer not exceed- 100 selected at random is divisible by 5 or 7? nd the probability of winning a lottery by selecting the t...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
Consider a normal distribution with mean 25 and standard
deviation 5. What is the probability a value selected at random
from this distribution is greater than 25? (Round your answer to
two decimal places.)
Assume that x has a normal distribution with the specified
mean and standard deviation. Find the indicated probability. (Round
your answer to four decimal places.)
μ = 14.9; σ = 3.5
P(10 ≤ x ≤ 26) =
Need Help? Read It
Assume that x has a...
100. The probability that a house in an urban area will be burglarized is 5%. If 82 houses are randomly selected, what is the probability that none of the houses will be burglarized? B) 0.001 A) 0.050 C) 0.000 D) 0.015 13. Slate wiele le Val DUI IJ UIJTUI The weight and height of a person A) discrete B) continuous 14. Classify the statement as an example of classical probability, empirical probability, or subjective probability in California's Pick Three lottery,...
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