Mathematics, 18.05.2021 19:10 chanthonymjones
A normally distributed random variable with mean 4.5 and standard deviation 7.6 is sampled to get two independent values, X1 and X2. The mean is estimated using the formula (3X1 4X2)/8. Determine the bias and the mean squared error for this estimator of the mean. Bias: Mean Square Error:
Answers: 1
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 23:00
Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second
Answers: 1
Mathematics, 21.06.2019 23:40
What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units
Answers: 1
A normally distributed random variable with mean 4.5 and standard deviation 7.6 is sampled to get tw...
Mathematics, 17.02.2021 20:10
Arts, 17.02.2021 20:10
Physics, 17.02.2021 20:10
Geography, 17.02.2021 20:10
Social Studies, 17.02.2021 20:10
English, 17.02.2021 20:10
Mathematics, 17.02.2021 20:10
Chemistry, 17.02.2021 20:10
Mathematics, 17.02.2021 20:10
English, 17.02.2021 20:10