The area of a rectangle is Length multiplied by Width
So plug the numbers in to find the width
1/2 = 2/3*W
Solve as follows:
1/2 divided by 2/3 =3/4 so,
W=3/4
The width of the parking lot is 3/4 of a mile
Answer:
a)
b)
And adding the values we got:
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest "number of teens that have heard of a fax machine", on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
Part a
For this case we want this probability:
Part b
For this case we want this probability:
And adding the values we got:
That question is rly badly organized but i think it’s 70
Answer:
The probability that a worker makes between $400 and $450 is .3413 using the calculator and .34 using the empirical rule.
Step-by-step explanation:
There are two ways to approach this problem.
The first way is to find the <u>z-score</u> corresponding to $400 and $450 weekly wage and find the p-value in between these values.
If you use the normalcdf function on your calculator and put 0 and 1 as the lower and upper bounds, respectively, you will get an area of .3413.
Another way of looking at this problem is to recognize that the weekly wages given are the mean and one standard deviation above the mean.
We can use the <u>Empirical Rule</u>, <em>68-95-99.7</em>, in order to see that going one standard deviation above the mean would be an area of 68/2 = .34.
I've attached an image that shows you what the normal curve looks like.
1) exterior angle = sum of interior angles except the neighboring one.
1) 48 + 45 = 93
2)180 - 147 = 33 , 180 - 72 = 108
x = 180 - 108 - 33 = 39
3) 180 - 104= 76
x = 51 + 76 = 127
4) 180 -154 = 26 , 180 - 73= 107
x = 180 - 107 - 26= 47
180 - 110 = 70
x = 180 - 140 = 40
last) 180 - 122 = 58
x = (180 - 58)/2 = 61