Answer:
a) The third quartile Q₃ = 56.45
b) Variance 
Step-by-step explanation:
Given that :
= 30.8
Median
= 48.5
Mean = 42
a) The mean is less than median; thus the expression showing the coefficient of skewness is given by the formula :




Divide both sides by 1.38

b) The objective here is to determine the approximate value of the variance;
Using the relation






Variance = 

Answer
W=7
Explanation:
The formula for the perimeter for a rectangle is P = 2L + 2W
The formula for the area of a rectangle is A = LW
where L = length and W = width
P = 22 and A = 28
22 = 2L + 2W
28 = LW
Rewriting the 2nd equation L = 28/W
Substituting this into the first equation
22=2(28/W) + 2W
Reworking the equation to eliminate the denominator
22W = 2(28) + 2W2
22W = 56 + 2W2
and
2W2 - 22W + 56 = 0
Dividing by 2
W2 - 11W + 28 = 0
(W-7)(W-4)
Set each factor equal to 0 and solve each for 0
W = 4, W = 7
then W = 4
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<h3>3 tons is equal to 96000 ounces</h3>
<em><u>Solution:</u></em>
Given that,
We have to convert 3 tons to ounces
<em><u>Use the following conversion factor</u></em>
1 ton is equal to 32000 ounces
<h3>1 ton = 32000 ounces</h3>
<em><u>Convert 3 tons to ounces</u></em>
3 tons = 3 x 32000 ounces
3 tons = 96000 ounces
Thus 3 tons is equal to 96000 ounces
Answer: Option 'B' is correct.
Step-by-step explanation:
Number of pounds of candy = 30
Cost per pound = $1.10
Total amount would be

Let the number of pound that sold at $1.50 per pound be 'x'.
Let the number of pound that sold at 90 cents per pound be '30-x.
According to question, we get that

Hence, there are 10 pounds of chocolates worth $1.50 per pound.
Therefore, Option 'B' is correct.
Answer:
600,000
Step-by-step explanation:
Phoenix AZ has approximately 600,000 people