Mathematics, 01.02.2021 06:10 princessmaddiegigi
A sample of a radioactive isotope had an initial mass of 560 mg in the year 1995 and
decays exponentially over timeſ A measurement in the year 2002 found that the
sample's mass had decayed to 90 mg. What would be the expected mass of the
sample in the year 2012, to the nearest whole number?
Answers: 2
Mathematics, 20.06.2019 18:04
Keisha makes a large sandwich for a family picnic she takes 1/2 of them the sandwich to the picnic her family eats 3/8 of the whole sandwich what fraction of the whole sandwich does keisha bring back from the picnic
Answers: 3
Mathematics, 22.06.2019 03:50
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
A sample of a radioactive isotope had an initial mass of 560 mg in the year 1995 and
decays exponen...
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