Question
In: Statistics and Probability
An electronics store has received a shipment of 30 table radios that have connections for an...
An electronics store has received a shipment of 30 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 eighteen have a single slot. Suppose that eight of the 30 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.
b) Compute
P(X = 2), P(X ≤ 2), and P(X ≥ 2).
(Round your answers to four decimal places.)
| P(X = 2) = | |
| P(X ≤ 2) = | |
| P(X ≥ 2) = |
(c) Calculate the mean value and standard deviation of X.
(Round your standard deviation to two decimal places.)
| mean value | radios |
| standard deviation | radios |
Solutions
orchestra answered 1 year agoRelated Solutions
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