An electric store has received a shipment of 20 table radios that have connections for the iPhone.

[Ahmad Asif Arifeen]

An electric store has received a shipment of 20 table radios that have connections for the iPhone. 12 of these have 2 slots and the others have a single slot. Suppose, 6 of the 12 radios are randomly selected to store. Let, X be the number of stored radios with two slots.
a. What kind of s distribution does X have? (include all the values of the parameters)
b. Compute, P(X ≤ 3 ).
c. Calculate the mean and standard deviation of X.
d. Calculate the probability that X exceeds its mean value by less than one standard deviation.
e. Plot the Histogram of X and comment on the shape of the distribution.

 

[pka]

An electric store has received a shipment of 20 table radios that have connections for the iPhone. 12 of these have 2 slots and the others have a single slot. Suppose, 6 of the 12 radios are randomly selected to store. Let, X be the number of stored radios with two slots.
a. What kind of s distribution does X have? (include all the values of the parameters)
b. Compute, P(X ≤ 3 ).
c. Calculate the mean and standard deviation of X.
d. Calculate the probability that X exceeds its mean value by less than one standard deviation.
e. Plot the Histogram of X and comment on the shape of the distribution.

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