For the following distribution, what is the probability, P(X > 6)? Express the answer as a decimal number (for example, 0.5, not 1/2 or 50%).
| x | 3 | 4 | 5 | 6 | 7 | 8 |
| P(X = x) | 0.15 | 0.20 | 0.20 | 0.25 | 0.10 | 0.10 |
For the following distribution, what is the probability, P(X > 6)? Express the answer as a decimal...
What are the expected value and standard deviation of the following probability distribution? Random Variable X Probability 1 0.05 2 0.05 3 0.10 4 0.10 5 0.15 6 0.15 7 0.25 8 0.15
The following table contains the discrete probability distribution for X= the number of traffic accidents in Norfolk. X 0 1 2 3 4 5 P(X) 0.15 0.10 0.30 0.20 0.08 (a) (4 Points) Determine the missing probability value in the above table. Answer: ___________________ (b) (4 points) What is the probability of 2 accidents? Answer: ______________________________ (c) (7 points) What is the probability of at least 3 accidents? Answer: ________________________ (d) (10 points) Compute the expected...
Fill in the P(X = x) values to give a legitimate probability distribution for the discrete random variable X, whose possible values are 2, 3, 4, 5, and 6. Value I of x P(x = x) 2 0.16 3 4 0.17 0.29 6 0 X 6 For Subm Let X be a random variable with the following probability distribution: 1 Value x of X P(X=x) 0.25 2 0.05 3 0.15 4 0.15 5 0.10 6 0.30 Find the expectation E...
You are given the probability distribution below: x 0 1 2 3 4 p(x) 0.05 0.35 0.25 0.20 0.15 Determine the standard deviation of X. Report your answer to three decimal places.
1. (3 points) Explain why each of the following is not a valid discrete probability distribution. P(x) 0.35 0.10 T-Mobile 0.25 MetroPCS 0.15 0.05 0.10 a. Verizon Sprint Cricket Other b.X Px 0 0.2 2 0.3 0.4 6 0.5 -2 0.1 0 0.2 2 0.2 4 0.2 8 0.3
1. Which of the following is a probability mass function for some probability distribution p with domain {1,2,3,4}? P(1)=0.1,P(2)=0.2,P(3)=0.3,P(4)=0.4 P(1)=0.1,P(2)=0.1,P(3)=0.3,P(4)=0.4 P(1)=0.2,P(2)=0.4,P(3)=0.3,P(4)=0.4 P(1)=-0.5,P(2)=0.8,P(3)=0.5,P(4)=0.2 2. Let X be the random variable where X is the number of heads after flipping a fair coin 50 times. What is the mean of X? 3. Suppose that one flips a fair coin 6 times. What is the probability of getting at most 2 heads? 4. Which of the following is a discrete probability distribution and...
Let X be a random variable with the following probability distribution: value x of X P (X= x) 40 50 60 70 80 90 0.10 0.15 0.40 0.20 0.05 0.10 Find the expectation E (X) and variance Var(X) of X. (If necessary, consult a list of formulas.) Var(x)-
29. Determine if the following table represents a discrete probability distribution, where x represents the number of pizza toppings that a customer may order. x 0 1 2 3 4 P(x) 0.15 0.10 0.25 0.25 0.25 a) No, because Ex+1 b) No, because & p(x) #1 c) Yes, because p(x) = 1 d) Yes, because x = 1 30. Use the table on #29 and find the probability that a randomly select customer will ordered at most 1 toppings a).25...
Consider the following probability distribution of the random variable X. x 2 4 6 8 10 12 P(Y = x) 0.05 0.15 0.25 A 0.05 0.25 State the value of A to two digits to the right of the decimal point.
Fifteen items or less: The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. 1 0.15 2 0.30 3 0.20 4 0.10 5 0.05 P(x) 0.20 Send data to Excel Part 1 of 7 (a) Find P(5). P(5) = 0 Part 2 of 7 (b) Find P(No less than 4). P(No less than 4) = Part 3 of 7 (c) Find the probability that no one is in line....