Answer:
The probability that a household in Maryland has an annual income of X or more is 1 subtracted by the p-value of 
, in which 
is the mean income and 
is the standard deviation of incomes.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
In this question:
Mean , standard deviation
What is the probability that a household in Maryland has an annual income of X or more?
The probability that a household in Maryland has an annual income of X or more is 1 subtracted by the p-value of , in which is the mean income and is the standard deviation of incomes.
Answer:
-2, 1, 3
Step-by-step explanation:
when f(x) = 0, then the y value equals zero. this occurs at (-2,0) , (1,0) , (3,0)
Answer:
16.61+n=37 and p= 20.39
Step-by-step explanation:
Since Valentina has 37 dollars alreay, then that is the total amount the she has. When she spend 16.61, you will have to subtract that with 37. With p, you will put a + by it because it should that she bought additional item too. With this, you should get p=20.39
Hope this Helped
Answer:
x = 6, ∠ B = 126°
Step-by-step explanation:
∠ A and ∠ B are alternate angles and congruent, so
8x + 78 = 2x + 114 ( subtract 2x from both sides )
6x + 78 = 114 ( subtract 78 from both sides )
6x = 36 ( divide both sides by 6 )
x = 6
Then
∠ B = 2x + 114 = 2(6) + 114 = 12 + 114 = 126°
Answer:
The answer is C
Step-by-step explanation:
