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

Expert Solution


orchestra answered 2 years ago
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