Answer:
5=2.50$
4= 2.00$
3= 1.50
2= 1.00$
1= .50cents
Step-by-step explanation:
Hello,
Here is your answer:
The proper answer to the question is option A "3".
Here is how:
There is only two options 250 and 350 and there is 12 months which means there can only be three for both.
Your answer is A.
If you need anymore help feel free to ask me!
Hope this helps!
Answer:
x = 60
Step-by-step explanation:
multiply 12 by 5 to get the numerator. 12/5 = 60.
to check, divide the numerator by the denominator.
Answer:
2 1/4
Step-by-step explanation:
if it is right brainliest pls
Z score ( X = 1890 ): 1.31
Z score ( X = 1230 ): -0.76
Z score ( X = 2220 ): 2.34 (This value of Z is unusual )
Z score ( X = 1360 ): -0.35
<u>Step-by-step explanation:</u>
Here we have , A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1473 and the standard deviation was 318 . The test scores of four students selected at random are 1890 , 1230 , 2220 , and 1360 . We need to find Find the z-scores that correspond to each value and determine whether any of the values are unusual. Let's find out:
We know that Z score is given by : ( data - Mean ) / ( standard deviation )
Z score ( X = 1890 ):
⇒
Z score ( X = 1230 ):
⇒
Z score ( X = 2220 ):
⇒
This value of Z is unusual as Value lies as : .
Z score ( X = 1360 ):
⇒