Answer:
And if we solve for a we got
Step-by-step explanation:
Let X the random variable that represent the lenght time it takes to find a parking space at 9AM of a population, and for this case we know the distribution for X is given by:
Where 
and 
For this part we want to find a value a, such that we satisfy this condition:
(a)
(b)
As we can see on the figure attached the z value that satisfy the condition with 0.7 of the area on the left and 0.3 of the area on the right it's z=0.524
If we use condition (b) from previous we have this:
But we know which value of z satisfy the previous equation so then we can do this:
And if we solve for a we got
1,2,3,,4,6,8,12,24 are the factors of 24
Answer:
70%
Step-by-step explanation:
The probability it rains on at least one of the days is:
P = P(Sat & not Sun) + P(Sun & not Sat) + P(Sat & Sun)
P = (0.40)(1−0.50) + (0.50)(1−0.40) + (0.40)(0.50)
P = 0.20 + 0.30 + 0.20
P = 0.70
Another way to look at it is 1 − the probability that it doesn't rain on either day.
P = 1 − P(not Sat & not Sun)
P = 1 − (1−0.40)(1−0.50)
P = 1 − 0.30
P = 0.70
There is a 70% probability that it will rain on at least one day.
Answer:
51 sides
Step-by-step explanation:
triangles: 3 sides
decagons: 10 sides
octagons: 8 sides
3x2=15
2x10=20
8x2=16
add them =51 sides
Answer: The 1st option is the answer.
Step-by-step explanation:
So let your explicit rule be f(x) = 14 - 9x.
The gradient of this graph is the coefficient of x, which is -9. So each time x is increased by 1, f(x) increases by -9, which is to say it decreases by 9.
So a(n) = a(n-1) -9.
And a(1) = 14 - 9 × 1, which is 5. We get this by substituting i for n.
So your answer is the 1st option.
Hope i helped ya...
