Mathematics, 22.04.2021 16:50, mv603177
X is a normally distributed random variable with mean 64 and standard deviation 19. What is the probability that X is between 26 and 83?
Answers: 1
Mathematics, 21.06.2019 17:30, theeflyguy5
Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .
Answers: 1
Mathematics, 22.06.2019 02:00, arlabbe0606
(30 points). the population of a city is 45,000 and decreases 2% each year. if the trend continues, what will the population be aer 15 yrs
Answers: 2
Mathematics, 22.06.2019 03:50, jescanarias22
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
X is a normally distributed random variable with mean 64 and standard deviation 19. What is the prob...
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