What is x+-9=15 plz help
1 answer:
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Answer:
Step-by-step explanation:
When A, B,C are equally likely to be assigned to any one of the stations 1,2 or 3
we find that each one assigned to one station has probability 1/3
Also each person is independent of the other.
Probability that
a) All three family members are assigned to the same station
= P(ABC) to same station
= P(ABC) to 1+P(ABC) to 2 +P(ABC) to 3
=3*P(A)P(B)P(C) since independent
=
b) This would be equivalent to 1- all 3 to the same station
=
c) Every member to a different station
A has 3 choices while B has remaining 2 and C has 1
Hence prob =
Answer:
The mean is 0.54 and the standard deviation is 0.0135.
Step-by-step explanation:
i) the mean of the sampling distribution is 0.54
ii) the mean for the sampling distribution, p = 0.54
iii) therefore for the sampling distribution, q = ( 1 - 0.54) = 0.46
iv) the sample size of the distribution, n = 1356
v)