Probability they wait less than 3 minutes

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Wait times at the grocery store are uniformly distributed between 0 and 4 minutes. A shopper is selected randomly, find the following:

Express answer as reduced fraction or decimal (rounded to two decimal places).  

a. The probability they wait at most three minutes,

P( x <= 3 ) = 

b. The probability they wait exactly two minutes,

P( x = 2 ) = 

c. The probability they wait between 1 and 3 minutes,

P( 1 < x < 3 ) = 

d. The probability they wait less than 3 minutes, given that they wait more than 1 minute, 

P( x<3 | x>1) = 

e. The mean wait time is______  minutes.

f. The standard deviation of the distribution is _____ minutes.

Reference no: EM132166889

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