Answer:
Standard deviation = 0.547
Step-by-step explanation:
Given the data
$5 for spade
$10 for any club
$20 for an ace club
Lets assume Probability of getting these cards to be
0.5, 0.20 and 0.30
Therefore, mean would be
Summation (PX) = 5×0.5 + 10×0.2 +20×0.3
Summation (PX)/n= 10.5/35 = 0.3
Standard deviation = √0.3
Standard deviation = 0.547
Answer:
(2x - 2) (4x +4)
= 2x*4x + 2x*4 - 2*4x - 2*4
= 8x^2 + 8x - 8x - 8
= 8x^2 - 8
Your answer is correct. Great.
Answer:
The correct answer is choice C.
Step-by-step explanation:
If you were to input the weight in ounces of each data set into all of the answers, you'll find that only option C meets the requirement. If the weight in ounces is 12, 12 * 600 = 7,200, which is the same as the cost in dollars of that set. If the weight in ounces is 22, 22 * 600 = 13,200, which is the same as the cost in dollars of that set. If the weight in ounces is 32, 32 * 600 = 19,200, which does equal the same as the cost in dollars of that set. So the correct answer is choice C.
Answer: 2 packets
Step-by-step explanation:
38-22= 16. 16/8 =2
