Answer:
The sampling distribution of X is exactly binomial with n = 1200 and p = 0.25
Step-by-step explanation:
For each person surveyed, there are only two possible outcomes. Eithey they support his proposition, or they do not support his proposition. So the sampling distribution of X is exactly binomial.
Binomial probability:
Probability of exactly x sucesses on n repeated trials, with a p probability.
He surveyes 1200 likely voters, so
He believes he could gain the support of 25% of likely voters. So .
The correct answer is:
The sampling distribution of X is exactly binomial with n = 1200 and p = 0.25
Answer:
B, 118°
Step-by-step explanation:
The sum of angles on a straight line is 180° (because the measure of a straight line is 180°)
Thus:
m∠RSU + m∠UST = 180°
Substitute m∠UST with 62°.
m∠RSU + 62° = 180°
Subtract both sides by 62°.
m∠RSU = 118°
So, the answer is B, 118°
I hope this helps! Feel free to ask any questions!
We can factor
to equal
which is also
so when we divide this by x+3, we simply get
Answer:
The height of the tank is 20 inches.
Step-by-step explanation:
The fish tank is a parallelepiped wich volume equals to the product of it's three dimensions, the width, length and height. So the formula to the volume is:
V = width*length*height
In this problem we know the volume, the width and the length and we want to know the height, so we can isolate the variable we want to know, such as:
height = V/(width*length) = 3360/(14*12) = 3360/168 = 20 inches
The height of the tank is 20 inches.