Consider the following cumulative probability distribution. 1 2 3
4
0.09 0.31 0.48 0.65 0.84
5
1
a. Calculate A{Xs 4). (Round your answer to 2 decimal places.)
POX s 4)
P
b. Calculate P{X= 3). (Round your answer to 2 decimal places.)
P(X = 3)
#
+
E
10
19
34
M
c. Calculate P(2 s X s 4). (Round your answer to 2 decimal places.)
P(2 5 X 84)

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

which expression represents the approximate length of bc?

step-by-step explanation:

x = 3 ± √(5+y)