A luxury apartment complex in South Beach Miami is for sale. The owner has received the following offers in millions of dollars.
1 answer:
Answer:
(1) The sample mean of the offers is 70.0
(2) The sample variance of the offers is 68
Step-by-step explanation:
(1) Sample mean = summation of offers ÷ number of offers = (64+72+66+58+78+82) ÷ 6 = 420 ÷ 6 = 70.0 (to one decimal place)
(2) Sample variance = summation (offers - sample mean)^2 ÷ number of offers = [(64-70)^2 + (72-70)^2 + (66-70)^2 + (58-70)^2 + (78-70)^2 + (82-70)^2] ÷ 6 = (36+4+16+144+64+144) ÷ 6 = 408 ÷ 6 = 68
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Answer:
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Step-by-step explanation:
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Im confused can you please clarify?
First of all, x>y
x-y=40
and
x+y=66
add them equations together to eliminate
x-y=40
<u>x+y=66 +</u>
2x+0y=106
2x=106
divide by 2
x=53
sub back
x-y=40
53-y=40
minus 53 both sides
-y=-13
y=13
the numbers are 53 and 13
I'm pretty sure it is C. 45 because compass and straightedge is a right angle or an acute angle and 45 is less than a right angle
The first one in the top is 180 degrees so 8(15) and 8x15=120 so x on the other side is 60.
