Answer:
4.19 ft ^3 or A.
Step-by-step explanation:
Grace, Ted, and Keisha are siblings. Each took a turn using the computer today. The matrix equation that represents this situati
on is shown, where g is the number of minutes Grace was on the computer, t is the number of minutes Ted was on the computer, and k is the number of minutes Keisha was on the computer.
Which statement is true?
A.
Keisha spent the least amount of time on the computer.
B.
Ted spent the least amount of time on the computer.
C.
All three spent the same amount of time on the computer.
D.
Grace spent the least amount of time on the computer.
Which statement is true?
A.
Keisha spent the least amount of time on the computer.
B.
Ted spent the least amount of time on the computer.
C.
All three spent the same amount of time on the computer.
D.
Grace spent the least amount of time on the computer.
1 answer:
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Answer:
0.099, 0.969,0.87,8.3.1.063
Step-by-step explanation:
Let X be the left handed people in the sample of 10 people selected.
X is binomial with n=10 and p = 0.13
a) the probability that there are exactly 3 lefties in the group
=
b) the probability that there are at least 3 lefties in the group
=
Now Y number of right handers is binomial with n =10 and p = 0.87
c) the expected number of right-handers in the group.
d) the standard deviation of the number of right-handers in the group
=