To solve the question we proceed as follows:
mean=142
standard deviation=14
a] Find the interval in which 68% of the data lies:
P(x<X)=68%=0.68
the z-score associated with this probability is:
P(z<Z)=0.47
but :
z=(x-mu)/sig
thus;
0.47=(x-142)/14
solving for x we get:
x=148.58
thus 68 percent of the data lie below 148.58
b]<span>what is the probability that a man picked at random from the unit will weigh more than 170 pounds?
</span>x=170
thus
P(x>170) will be:
z=(170-142)/14
z=2
Thus
P(x>170)=1-P(z<2)
=1-0.9772
=0.0228
c] <span>that he will weigh less than 128 pounds?
P(x<128)
z=(128-142)/14
z=(-14/14)=-1
Thus
P(z<-1)=0.1587</span>
Answer:
he got some diabetes but the answer is looking it up o-o
Step-by-step explanation:
Answer:
The store charges
If we order 3 turkey subs
$20/3 = $6.66 per turkey sub
If we order 4 turkey subs, the order would be
$26/4 = $6.5 per turkey sub
If we order 4 turkey subs, we get a price reduction per turkey sub.
So the relationship between the number of turkey subs ordered and the price is not proportional (linear)
We know this because as the order increases, we do not have the same cost per turkey sub.
$6.66 ≠ $6.5
If you order 3 turkey subs, you will pay $20 dollars or $6.66 per turkey sub
If you order 4 turkey subs, you will pay $26 dollars or $6.5 per turkey sub
If you cannot find a common denominator on the top of your head, you can multiply the two denominators of the fractions together and then you will end up with a number that has a common denominator...
Hello there.
Question: <span>The diameter of a circle is 19 inches. Using the formula C ≈ 3d, what is the approximate circumference of the circle?
Answer: The formula is stating that the circumference is approximately equal to 3 times the diameter.
If the diameter is 19 in then to figure out the approximate value of the circumference you need to multiply it by 3.
19 x 3 = 57.
The circumference is approximately 57 in.
Hope This Helps You!
Good Luck Studying ^-^</span>