A tool box contains 3 good bolts and 4 stripped bolts. Suppose that 3 bolts are...
A tool box contains 3 good bolts and 4 stripped bolts. Suppose that 3 bolts are selected at random and that X is defined to be the number of stripped bolts in the sample. Then X takes on how many values
Homework Answers
Given that
3 good bolts
4 stripped bolts.
3 bolts are selected at random
X takes on 0,1,2,3
i.e., x = 0,1,2,3
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A tool box contains 3 good bolts and 4 stripped bolts. Suppose
that 3 bolts are...
Creating a Discrete Probability Distribution Table Suppose that a box contains 7 cameras and that 4...
Creating a Discrete Probability Distribution Table Suppose that a box contains 7 cameras and that 4 of them are defective. A sample of 2 cameras is selected at random. Define the random variable X X as the number of defective cameras in the sample. Write the probability distribution for X X . Give your answers to 2 decimal places. k P(X = k) What is the expected value of X X ? Give your answer to 2 decimal places.
Question 10 > 0/2 pts 399 Details Suppose that a box contains 8 cameras and that...
Question 10 > 0/2 pts 399 Details Suppose that a box contains 8 cameras and that 4 of them are defective. A sample of 2 cameras is selected at random. Define the random variable X as the number of defective cameras in the sample. Write the probability distribution for X. k P(X = k) What is the expected value of X? Question Help: D Post to forum Submit Question
1.) Suppose that a box contains 8 cameras and that 3 of them are defective. A...
1.)
Suppose that a box contains 8 cameras and that 3 of them are
defective. A sample of 2 cameras is selected at random. Define the
random variable X as the number of defective cameras in the
sample.
Hint: Make a probability tree for selecting 2 cameras without
replacement.
Write the probability distribution for X.
k
P(X=k)
What is the expected value of X?
2.)
Assume that a procedure yields a binomial distribution with a
trial repeated n=5n=5 times. Find...
1) box 1 contains 10 cookies of which 6 are broken and 4 are good. Box...
1) box 1 contains 10 cookies of which 6 are broken and 4 are good. Box 2 contains 12 cookies of which 7 are broken and 5 are good. If the cookie selected is broken, what is the probability that box 1 was selected? 2)The probability that a given line of computer code has a mistake in it is 0.02. Suppose there are 20 such lines of code and that the mistakes occur independently from line to line. a. Calculate...
3. Suppose a batch of 50 items contains 4 defective ones, and a sample of 5...
3. Suppose a batch of 50 items contains 4 defective ones, and a sample of 5 items is selected at random from the batch. Let X denote the number of defective items in the sample. (a) What is the name of the distribution of X? (b) Find the probability mass function for X. You may write this as a function or as a chart. If you write it as a function, also give the set of X values where the...
A box of 8 flashbulbs contains 3 defective bulbs. A random sample of 2 is selected...
A box of 8 flashbulbs contains 3 defective bulbs. A random sample of 2 is selected and tested. Let X be the random variable associated with the number of defective bulbs in a sample. (A) Find the probability distribution of X. (B) Find the expected number of defective bulbs in a sample.
(+5)* 6. Suppose that a box contains 2 red balls, 3 white balls, and 4 blue...
(+5)* 6. Suppose that a box contains 2 red balls, 3 white balls, and 4 blue balls. Suppose also that balls are selected from the box one at a time, at random, without replacement. What is the probability that a) all white balls will be obtained in a row? b) both end balls are blue?
2. A box contains 4 white and 6 black balls. A random sample of size 4...
2. A box contains 4 white and 6 black balls. A random sample of size 4 is chosen. Let X denote the number of white balls in the sample. An additional ball is now selected from the remaining 6 balls in the box. Let Y equal 1 if this ball is white and 0 if it is black. Find (a) Var(Y|X=0). (b) Var(X)Y= 1).
Suppose a box of apples contains 10 good apples and 6 rotten apples. If four apples...
Suppose a box of apples contains 10 good apples and 6 rotten apples. If four apples are randomly selected without looking and without replacement, a. What is the probability that all four apples are good? Round answer to 3 significant digits. b. What is the probability that at least one of the apples is good? Round answer to 3 significant digits.
N Suppose a box of apples contains 10 good apples and 6 rotten apples. If four...
N Suppose a box of apples contains 10 good apples and 6 rotten apples. If four apples are randomly selected without looking and without replacement, What is the probability that all four apples are good? Round answer to 3 picant digts b. What is the probability that at least one of the apples is good? Round answer to 3 significant digits.
Question 10 > 0/2 pts 399 Details Suppose that a box contains 8 cameras and that 4 of them are defective. A sample of 2 cameras is selected at random. Define the random variable X as the number of defective cameras in the sample. Write the probability distribution for X. k P(X = k) What is the expected value of X? Question Help: D Post to forum Submit Question
1.)
Suppose that a box contains 8 cameras and that 3 of them are
defective. A sample of 2 cameras is selected at random. Define the
random variable X as the number of defective cameras in the
sample.
Hint: Make a probability tree for selecting 2 cameras without
replacement.
Write the probability distribution for X.
k
P(X=k)
What is the expected value of X?
2.)
Assume that a procedure yields a binomial distribution with a
trial repeated n=5n=5 times. Find...
3. Suppose a batch of 50 items contains 4 defective ones, and a sample of 5 items is selected at random from the batch. Let X denote the number of defective items in the sample. (a) What is the name of the distribution of X? (b) Find the probability mass function for X. You may write this as a function or as a chart. If you write it as a function, also give the set of X values where the...
(+5)* 6. Suppose that a box contains 2 red balls, 3 white balls, and 4 blue balls. Suppose also that balls are selected from the box one at a time, at random, without replacement. What is the probability that a) all white balls will be obtained in a row? b) both end balls are blue?
2. A box contains 4 white and 6 black balls. A random sample of size 4 is chosen. Let X denote the number of white balls in the sample. An additional ball is now selected from the remaining 6 balls in the box. Let Y equal 1 if this ball is white and 0 if it is black. Find (a) Var(Y|X=0). (b) Var(X)Y= 1).
Suppose a box of apples contains 10 good apples and 6 rotten apples. If four apples are randomly selected without looking and without replacement, a. What is the probability that all four apples are good? Round answer to 3 significant digits. b. What is the probability that at least one of the apples is good? Round answer to 3 significant digits.
N Suppose a box of apples contains 10 good apples and 6 rotten apples. If four apples are randomly selected without looking and without replacement, What is the probability that all four apples are good? Round answer to 3 picant digts b. What is the probability that at least one of the apples is good? Round answer to 3 significant digits.
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