A certain type of digital camera comes in either a 3-megapixel version or a 4-megapixel version. A camera store has received a shipment of 14 of these cameras, of which 6 have 3-megapixel resolution. Suppose that 3 of these cameras are randomly selected to be stored behind the counter; the other 11 are placed in a storeroom. Let X = the number of 3-megapixel cameras among the 3 selected for behind-the-counter storage. (a) What kind of distribution does X have (name and values of all parameters)? Distribution Parameters binomial O n = 3 O geometric Op= 3/14 hypergeometric ON = 14 O negative binomial O M = 6 9/14 O g2 = 9/28 (b) Compute the following. (Enter your answers as fractions.) P(X = 2) 108/343 P(X S 2) 316/343 P(X 2 2) 135/343 (e) Calculate the mean value and standard deviation of X. (Give your answers to three decimal places.) 6 standard deviation 1.852 mean value
A certain type of digital camera comes in either a 3-megapixel version or a 4-megapixel version. A camera store has received a shipment of 14 of these cameras, of which 6 have 3-megapixel resolution. Suppose that 3 of these cameras are randomly selected to be stored behind the counter; the other 11 are placed in a storeroom. Let X = the number of 3-megapixel cameras among the 3 selected for behind-the-counter storage. (a) What kind of distribution does X have (name and values of all parameters)? Distribution Parameters binomial O n = 3 O geometric Op= 3/14 hypergeometric ON = 14 O negative binomial O M = 6 9/14 O g2 = 9/28 (b) Compute the following. (Enter your answers as fractions.) P(X = 2) 108/343 P(X S 2) 316/343 P(X 2 2) 135/343 (e) Calculate the mean value and standard deviation of X. (Give your answers to three decimal places.) 6 standard deviation 1.852 mean value
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 9P
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