Answer:
0.081,0.2621,0.645,0.919
Step-by-step explanation:
Let X be the average speed of a car driving down freeway
Given that X is normal with mean as 70mph with a standard deviation of 5mph.
To convert to Z score we do
a) the probability that a randomly selected car is driving more than 77mph
b) probability that a randomly selected car is driving between 65 and 69 mph
=
c) the probability that a randonly selected car is driving between 67 and 77mph
=
d) the probability that a randomly selected car is driving less than 77mph
That's right. The answer is not zero. In fact, there's no answer at all,
simply because there's no question. In math in general, division by zero
is "not permitted", and if people start talking about it, the answer is called
"indeterminate" ... that means vague, and can't be determined.
Division is repeated subtraction. 6 divided by 2 means: "How many times
can you take 2 away from 6 before the 6 is all used up and gone ?", and the
answer is: 3 times and then it's gone.
So the question is really asking: "How many times can you take zero away
from 5 before the 5 is all used up and gone ?". There's no answer, because
no matter how many times you take away zero, you can never use up the 5 .
One more comment on the subject: Save your question marks. One is plenty.
Answer:
4 plants
Step-by-step explanation:
In this problem, we are given the total area of the garden, which is:
The number of plants that can fit inside the garden is given by the equation:
where:
n is the number of plants
a is the area of each plants
In this problem, the area of each plant is
Therefore, we can re-arrange the equation to find the number of plants that can fit:
Answer:
town A positively skewed town B symmetric
Step-by-step explanation: