Mathematics, 12.08.2020 05:01 reneek272
Suppose that 80% of all registered California voters favor banning the release of information from exit polls in presidential elections until after the polls in California close. A random sample of 25 registered California voters is selected.
Required:
a. Calculate the mean and standard deviation of the number of voters who favor the ban.
b. What is the probability that exactly 20 voters favor the ban?
Answers: 2
Mathematics, 21.06.2019 15:20
Which equation represents a circle with a center at (β3, β5) and a radius of 6 units? (x β 3)2 + (y β 5)2 = 6 (x β 3)2 + (y β 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36
Answers: 3
Mathematics, 21.06.2019 15:30
Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?
Answers: 2
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 β0.1315 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 βreal-worldβ examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 21:30
The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?
Answers: 1
Suppose that 80% of all registered California voters favor banning the release of information from e...
Advanced Placement (AP), 30.01.2021 04:30
English, 30.01.2021 04:30
History, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
Health, 30.01.2021 04:30
Chemistry, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
Mathematics, 30.01.2021 04:30
English, 30.01.2021 04:30