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ave a single slot. Suppose that eight of the 20 radios are randomly selected to be stor the number among the radios stored under the display shelf that have two slots. (a) What kind of distribution does X have (name and values of all parameters)? hypergeometric with N = 20, M = 12, and n = 8 hypergeometric with N = 12, M = 8, and n = 12 binomial with n = 20, x = 12, and p = 8/20 O binomial withn = 12, x = 8, and p = 8/12 O O

ave a single slot. Suppose that eight of the 20 radios are randomly selected to be stor the number among the radios stored under the display shelf that have two slots. (a) What kind of distribution does X have (name and values of all parameters)? hypergeometric with N = 20, M = 12, and n = 8 hypergeometric with N = 12, M = 8, and n = 12 binomial with n = 20, x = 12, and p = 8/20 O binomial withn = 12, x = 8, and p = 8/12 O O

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 28EQ
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Please help with b and c 

An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone. Twelve of these have two slots (so they can accommodate both devices), and the other eight have a single slot. Suppose that eight of the 20 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining ones are placed in a storeroom. Let X = the number among the radios stored under the display shelf that have two slots. (a) What kind of distribution does X have (name and values of all parameters)? hypergeometric with N = 20, M = 12, and n = 8 hypergeometric with N = 12, M = 8, and n = 12 binomial with n = 20, x = 12, and p = 8/20 binomial with n = 12, x = 8, and p = 8/12 (b) Compute P(X = 2), P(X < 2), and P(X > 2). (Round your answers to four decimal places.) P(X = 2) = 0.07502 X P(X < 2) =|0.0521 P(X > 2) = %3D (c) Calculate the mean value and standard deviation of X. (Round your standard deviation to two decimal places.) mean value radios standard deviation radios O O
Transcribed Image Text:An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone. Twelve of these have two slots (so they can accommodate both devices), and the other eight have a single slot. Suppose that eight of the 20 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining ones are placed in a storeroom. Let X = the number among the radios stored under the display shelf that have two slots. (a) What kind of distribution does X have (name and values of all parameters)? hypergeometric with N = 20, M = 12, and n = 8 hypergeometric with N = 12, M = 8, and n = 12 binomial with n = 20, x = 12, and p = 8/20 binomial with n = 12, x = 8, and p = 8/12 (b) Compute P(X = 2), P(X < 2), and P(X > 2). (Round your answers to four decimal places.) P(X = 2) = 0.07502 X P(X < 2) =|0.0521 P(X > 2) = %3D (c) Calculate the mean value and standard deviation of X. (Round your standard deviation to two decimal places.) mean value radios standard deviation radios O O
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