Question
In: Statistics and Probability
Use normal approximation to estimate the probability of passing a true/false test of 30 questions if...
Use normal approximation to estimate the probability of passing a true/false test of 30 questions if the minimum passing grade is 90% and all responses are random guesses.
Solutions
Expert Solution
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orchestra answered 2 years agoRelated Solutions
(1 point) Use the Normal Approximation to the Binomial Distribution to compute the probability of passing...
(1 point) Use the Normal Approximation to the Binomial
Distribution to compute the probability of passing a true/false
test of 40 questions if the minimum passing grade is 90% and all
responses are random guesses.
A true/false test has 30 questions. A passing grade is 78% or more correct answers. a....
A true/false test has 30 questions. A passing grade is 78% or
more correct answers.
a. What is the probability that a person will guess correctly on
one true/false question?
b. What is the probability that a person will guess incorrectly
on one question?
c. Find the approximate probability that a person who is just
guessing will pass the test.
d. If a similar test were given with multiple-choice questions
with four choices for each question, would the approximate
probability...
A true/false test has 100 questions. A passing grade is 64% or more correct answers. a....
A true/false test has 100 questions. A passing grade is 64% or
more correct answers. a. What is the probability that a person will
guess correctly on one true/false question? b. What is the
probability that a person will guess incorrectly on one question?
c. Find the approximate probability that a person who is just
guessing will pass the test. d. If a similar test were given with
multipl-choice questions with four choices for each question,
would the approximate probability...
Please answer these TRUE or FALSE questions. 1. True or False. The Born-Oppenheimer approximation accounts for...
Please answer these TRUE or FALSE questions.
1. True or False. The Born-Oppenheimer approximation accounts
for scattering.
2. True or False. Tunneling is one way to approximate the
solution to the Free Particle.
3. True or False. The coordinate version (x,y,z) of the Free
Particle wavefunction can be normalized by including time.
4. The spin quantum number is used when combining the Hydrogen
Atom and Free Particle models together.
True/False Questions (with explanations) 1. For a normal form game, a strategy is a probability distribution...
True/False Questions (with explanations)
1. For a normal form game, a strategy is a probability
distribution over the set of outcomes. (T/F)
2. For a mixed strategy Nash equilibrium of a normal form game,
Bob is mixing over two actions A and B. Bob can change his payoff
by reducing the probability of playing A and increasing the
probability of playing B? (T/F)
Use a normal approximation to find the probability of the indicated number of voters. In this...
Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 187 eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them
voted.
Probability that exactly 46 voted
The probability that exactly 46 of 187 eligible voters voted is
______
(Round to four decimal places as needed.)
Use a normal approximation to find the probability of the indicated number of voters. In this...
Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 170 eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them voted.
Probability that fewer than 43 voted.
The probability that fewer than 43 of 170 eligible voters voted
is
Use a normal approximation to find the probability of the indicated number of voters. In this...
Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 123 eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them
voted.
Probability that exactly 31 voted
The probability that exactly 31 of 123 eligible voters voted is
?
.
Use a normal approximation to find the probability of the indicated number of voters. In this...
Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 144eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them
voted.
Probability that fewer than 34 voted
The probability that fewer than 34 of 144 eligible voters voted
is?
Use a normal approximation to find the probability of the indicated number of voters. In this...
Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 156 eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them
voted.
The probability that fewer than 37 voted
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