Answer:
The answer is -1
Step-by-step explanation:
hope it helps
Answer:
32 with 11 handkerchief left over
Step-by-step explanation:
Handkerchief = 811
Quits for 1 handkerchief = 25
Number of quits
= 811 ÷ 25
= 32 Remainder 11
Answer: E. none of the above
Step-by-step explanation:
The given data values that represents the population:
2, 6, 3, and 1.
Number of values : n=4
Mean of the data values = 

Sum of the squares of the difference between each values and the mean =



Now , Variance = (Sum of the squares of the difference between each values and the mean ) ÷ (n)
= (14) ÷ (4)= 3.5
Hence, the variance is 3.5.
Therefore , the correct answer is "E. none of the above".
Answer:
Amount invested at 8% is $9000 and amount invested at 18% is $21000.
Step-by-step explanation:
Let amount invested at 8% be x.
Let amount invested at 18% be y.
We get the 1st equation as:
........(1)
We get the second equation as:

=> 
or getting rid of the decimal by multiplying by 100 on both sides.
........(2)
Multiplying (1) by 8 and subtracting from (2) we get
So, y = 21000
And 

So, x = 9000
Therefore, amount invested at 8% is $9000 and amount invested at 18% is $21000.
Answer:
He needs to order
of carpet
Step-by-step explanation:
we know that

we have

Convert to 
