Bill has x pence.
1 answer:
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Answer:
<h3> X = 2 , X = -3</h3>Option C is the correct option.
Step-by-step explanation:
Discriminant =
Given d = 15
When discriminant D > 0 --> roots are real and distinct. ( unequal )
So , option has real and distinct roots.
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Answer:
Step-by-step explanation:
We are given that 30% of California residents have adequate earthquake supplies.
a) Ramon variable X denotes the number of the california residents that have adequate earthquake insurance
B) x can take value 1 ,2 ,3 ......
C)The distribution of random variable is geometric distribution with parameter p=0.3
The pmf of geometric distribution is
D)P(X=1) or P(X=2)=P(X=1)+P(X=2)
P(X=1) or P(X=2)=
E)
F)
p is the resident who does not have adequate earthquake supplies.
p = 1-0.3 = 0.7
G)