Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.3, 0.4, and 0.3 respectively. What is the standard deviation of this customer's book purchases?
Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book...
Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.2, 0.2, and 0.6, respectively. What is the expected number of books a customer will purchase? The expected number of books that the customer will purchase is (Type an integer or a decimal.)
Problem 2 - Bayesian Inference Nisqually, Inc. sells books A,B,C on line. Each customer buys 0 or 1 copy of each title. a. Mrs. Independence Day, the company's data mining expert, makes the assumptions that: i) a customer decides to buy a book independently of what other books (s)he buys and independently of other customers. ii) all customers buy according to the same joint probability distribution PABC = PAPeP. with PA(1)0.6, PB(1) 0.3, Pc1) 0.4. For example, the probability that...
The probabilities that a building inspector will observe 0, 1, 2, 3, 4, or 5 code violations in a newly constructed suburban home are 0.48, 0.25, 0.14, 0.08, 0.04, and 0.01, respectively. What are the mean and standard deviation of building code violations?
ABC Company is a book order company that sells books via internet. When a customer places an order, the system checks books data for completeness and determines the price, then the customer is asked about his/her details and payment information. If the customer account is correct, the system checks customer details and determine discount. The system verifies the credit by checking the accounts receivable. If credit is OK then the system fills the order, else it requests repayment. To fill...
An info source produces 0 and 1 with probabilities 0.3 and 0.7, respectively. the output of the source is transmitted via a channel that has probabilities of error (turning a 1 into a 0 or a 0 into a 1) equal to 0.2 1) what is the probability that at the output a 1 is observed? 2) What is the probability that a 1 was output of the source if at the output of the channel a 1 is observed.
A local store knows that the mean purchase per customer is $57.84. Suppose the purchases per customer are normally distributed with a standard deviation of $4.63. What is the probability that in a sample of 26 customers the mean purchase per customer is between $56 and $58? a) 0.1774 b) 0.5502 c) 0.0212 d) 0.5714
SPS PP) 0.5 0 0.1 0.0 0.4 P(P 0.3 0.1 0.2 0.8 Above table shows probabilities regarding customers' soda and popcorn purchases at a movie theater. 13-What is the probability a randomly selected customer will purchase soda, L.e. P(S)? 14-What is the probability a randomly selected customer will purchase popcorn, i.e. P(P)? 15-What is the probability a randomly selected customer will not purchase soda? 16-What is the probability a randomly selected customer will not purchase popcorn? 17-What is the probability...
b.Using the fact that
PX=12n, compute the expected value
E(X) and standard deviation (σ) of the
number of pages for the population of 2n books.
QUESTION 1 (39 MARKS) Suppose you choose 2 books that you are planning to read (the books selected must contain both Malay and English). Thus, there will be a total of 2n number of books, where n is the number of team members. Assume that this 2n is the size of population that is approximately...
2. Let Z~ N(0,12) (distributed as a standard normal rv). Calculate the following probabilities, show your R code, and shade in the probability for plots that are missing it (do the shading by hand). a. P(0<Z<2.17)? Standard Normal 0.4 0.3 f(x0,1) 0.2 0.1 4TTT -3 -2 -1 0 1 2 3 b. P(-2.5 <Z <0)? Standard Normal 0.4 0.3 f(x:0,1) 0.2 0.1 0.0 LC - -3 -2 -1 0 1 2 C. P(-2.5 <Z< 2.5)? Standard Normal 0.4 0.3 f(x;0,1)...
QUESTION 1 (39 MARKS) Suppose you choose 2 books that you are planning to read (the books selected must contain both Malay and English). Thus, there will be a total of 2n number of books, where n is the number of team members. Assume that this 2n is the size of population that is approximately normally distributed with mean and standard deviation ơ a) List the number of pages for each of the 2n books as in Table 1. Let...