At a school there are five lessons in a day in total the five lessons last 4 hours assume that each session lasts the same amoun
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Answer:
a)
b) 0.6957
Step-by-step explanation:
Let X represent the number of 4's when n = 5 independent spins
each has a probability of 0.2 (i.e p = 0.2)
This notation is represented as:
X Binomial (n = 5, p = 0.2)
Probability of number of 4's is:
here; is the combinatorial expression
=
So; let's first find:
b)
Given that:
The ratio of boys to girls at birth in Singapore is quite high at 1.09:1
What proportion of Singapore families with exactly 6 children will have at least 3 boys?
Probability of having a boy = = 0.5215
Binomial Problem with n = 6
P(3<= x <=6) = 1 - P(0<= x <=2)
= 1 - binomial (6,0.5215,2)
= 0.6957
Answer:
F(x) = 2^x gives you (0,1)
G(x) = +1 also gives you (0,1)
Step-by-step explanation:
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