Answer:
13
Step-by-step explanation:
5+4+3+1=13
we got that from the sum of the number of runners in the different mile distances for the runners.
Answer:
The African Elephant is 2.27 times heavier than a African Lion.
Step-by-step explanation:
9 × 103 pounds = 927E.
4 × 102 pounds = 408L.
Answer:
a. 29
b. 9.1
Step-by-step explanation:
General = The perimeter is all the sides added togther.
a. x is given to you, so you just add all the numbers.
b. Now the perimeter is given, but not x. So add the numbers you can see. That would be 9+6.5+4.7= 20.2
So something + 20.2 has to equal 29.3
29.3 - 20.2 = 9.1.
I did not answer c. because I'm not very confident that my answer would be right. With my explainaion I hope you can figure it out easily enough. Good Luck!
Answer:
The appropriate solution is:
(a) 0.1056
(b) 0
(c) 0.9544
Step-by-step explanation:
The given values are:
Mean,

Standard deviation,

(a)
⇒ 



By using the table, we get


(b)
According to the question, the values are:
= 64
= 75
Now,
⇒
= 
= 
= 
= 
⇒ 
![=1 - P[\frac{(\bar x-\mu_\bar x)}{\sigma \bar x} < \frac{80-75}{0.5} ]](https://tex.z-dn.net/?f=%3D1%20-%20P%5B%5Cfrac%7B%28%5Cbar%20x-%5Cmu_%5Cbar%20x%29%7D%7B%5Csigma%20%5Cbar%20x%7D%20%3C%20%5Cfrac%7B80-75%7D%7B0.5%7D%20%20%5D)

By using the table, we get


(c)
As we know,
⇒
= 
= 
= 
= 
then,
= 
= ![P[\frac{74-75}{0.5} < \frac{\bar x-\mu \bar x}{\sigma \bar x} < \frac{76-75}{0.5} ]](https://tex.z-dn.net/?f=P%5B%5Cfrac%7B74-75%7D%7B0.5%7D%20%3C%20%5Cfrac%7B%5Cbar%20x-%5Cmu%20%5Cbar%20x%7D%7B%5Csigma%20%5Cbar%20x%7D%20%3C%20%5Cfrac%7B76-75%7D%7B0.5%7D%20%5D)
= 
=
By using the table, we get
= 
= 
(21 miles/gallon) x (21 gallons) = 21 x 21 = 441 miles