We will see that the probability of x taking on a value between 75 to 90 is P = 0.5
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How to get the probability?</h3>
We know that x is a continuous random variable uniformly distributed between 65 and 85.
This means that the probability that x value y in the range is such that:
1 = P(y)*(85 - 65) = P(y)*20
1/20 = P(y).
Now, the probability of x taking a value between 75 and 85 is:
P(75 to 85) = (1/20)*(85 - 75) = 10/20 = 0.5
And the probability between 85 and 90 is zero (because the maximum value that x can take is 85, so this part does not affect).
Then we conclude that the probability of x taking a value between 75 to 90 is:
P(75 to 90) = P(75 to 85) + P(85 to 90) = 0.5 + 0 = 0.5
If you want to learn more about probability, you can read:
brainly.com/question/251701
Answer:
Since f(x) is a first order equation, it has only one zero
f(x) = -20*x +23*x -6
This means that
f(x) = (-20 + 23)*x -6
f(x) = (3)*x -6
If we mame the previous equation equal to zero ----->
(3)*x -6 = 0
x = 2
which means, the factorization is equal to
(x-2) = 0
f(x) = 3*(x-2)
769.3= (3.14) r^2 *5
153.86=(3.14) r^2
49= r^2
The square root of 49 is 7
The answer is 7.
How many liters do Ima need to make one scone? ... when u have that , place 1 over (the number of liters to make one scone) ... then place 80 over x ... (yes they are fractions) now just multiply across ... so 80 times (the number of liters to make one scone) ... then divide that by one ... now u know how many liters u need to make 80 scones ... so , is 3 liters enough?