Samia normally works 8 hours a day and earns $X per hour. For each hour she works in in excess of 8 hours, she is paid twice her regular rate. If Samia works 12 hours in a
given day, how much will she earn in average per hour along that day?

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  $(4/3)X

Step-by-step explanation:

Working 12 hours, Samia gets paid for the first 8 hours ...

  8 · ($X) = $8X

For the remaining 4 hours, she is paid ...

  4 · ($2X) = $8X

Then for 12 hours, she is paid a total of ...

  $8X +$8X = $16X

Her average hourly pay is then ...

  total pay / total hours = $16X/12 = $(4/3)X . . . average hourly pay

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

37

step-by-step explanation: