Answer:
81.85.
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.
Suppose the mean height for men is 70 inches with a standard deviation of 2 inches.
This means that
What percentage of men are between 68 and 74 inches tall?
The proportion is the p-value of Z when X = 74 subtracted by the p-value of Z when X = 68.
X = 74
has a p-value of 0.9772.
X = 68
has a p-value of 0.1587.
0.9772 - 0.1587 = 0.8185
0.8185*100% = 81.85%.
Thus the percentage is 81.85%, and the answer is 81.85.
Because it is 3/4 of the entire bag, set it up as a ratio
3:4 = 4.5:w
<span>
</span>cross mult.
3w= 4.5(4)
3w = 18
divide 3 both sided
18/3=6
w=6
originally there was 6lbs of food.
Answer:
..........
Step-by-step explanation:
False
False
True
True
Answer:
the answer is x= 2,-4
Step-by-step explanation:
zeros = 2, -4
Answer:
The volume of the sculpture is 53.589 ft³
Step-by-step explanation:
Here, we note that the volume of a right circular cone is given by
Where:
V = Volume of the right circular cone
r = Radius of the base of the cone
h = Height of the cone = 5 ft
π = Constant = 3.14
However, the circumference is given as
Circumference = 20.096 ft
The formula for circumference is
Circumference = 2πr
Therefore, 2πr = 20.096 ft and
Therefore,
.