If three consecutive values add to 567 the middle value must be 567/3 = 189
Since the values are multiples of 9, the other values must be 189 - 9 and 189 + 9
The three values are 180, 189, 198
Answer:
200points
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Answer:
a)
b)
c)
d)
Step-by-step explanation:
Let X the random variable of interest and we know that the distribution is given by:
And for this problem we can use the cumulative distribution function in order to solve the items:
Part a
We want to find this probability:
Part b
Part c
And we can calculate the probability with this difference:
Part d
Since we have a continuous distribution the the probability for an unique value would be:
Answer:
the equation ax^2+bx+c=0
calculate b^2-4*a*c and this should be positive or zero to calculate the square root
and x1 = [- b + V(b^2-4ac)]/2a
x2 = [- b - V(b^2-4ac)]/2a
Step-by-step explanation: