Question
1- Let f(x) = kx where x is between 0 and 2. What is the value of k that makes this a legitimate density function?
1- Let f(x) = kx where x is between 0 and 2. What is the value of k that makes this a legitimate density function?
Group of answer choices
A- 1/2
B- 4
C- 2
D- None of the other choices is correct
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2-With a continuous random variable, P(a < X < b) is the area under the curve f(x) between a and b.
Group of answer choices
A-True
B- False
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3- Let f(x) =323x2for 0 < x < 1.
What is P(X < 1/2)? Choose the closest answer!
Group of answer choices
A- 1
B- 1/8
C- 1/2
D- 1/4
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4- Let f(x) =323x2for 0 < x < 1.
What is the mean of X? Choose the closest answer!
Group of answer choices
A-3/4
B- 1/4
C- 1
D- 2/4
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5- Let f(x) =323x2for 0 < x < 1.
What is the median of X? Choose the closest answer!
Group of answer choices
A- 0.6
B- 0.2
C- 0.4
D- 0.8
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6- Let f(x) =323x2for 0 < x < 1.
True or False? P(X < 1/2) = P(X <= 1/2)
Group of answer choices
A- True
B- False
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7-
Suppose f(x) = 1/2 where 0 < X < 2.
True or false? The median of X is 0.50.
Group of answer choices
A- True
A- False
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8- A continuous random variable has a(n) __________________________ number of possible values.
Group of answer choices
A- uncountably infinite
B- finite
C- countably infinite
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9-
A probability density function f(x) tells you how much probability is in the area near x.
Group of answer choices
A- True
B- False
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10- f(x) = 1/2 between 0 and 2. What is the probability that X is between 1 and 3?
Group of answer choices
A- 1/2
B- 1
C- 0
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