a)
because it is equal to the area of the shaded region between X=4 and X=6, and the probability that X falls within some interval is given by the area under the PDF.
b)
because the shaded region is a rectangle of height 1/5 (by virtue of X following a uniform distribution over the interval [2, 7], which has length 5).
Answer: $6.54
Step-by-step explanation:
The price of one orange is $1.09
The price of 4 oranges is $3.64
The price of 6 oranges is $6.54
Step-by-step explanation:
(Ryan+ castel)/2
(5+6)/2
11/2
5.5 hrs or 5½ hrs