<span>Order matters if you are picking a person as a delegate and another as alternate.
no. of ways = (10*9) (9*8) (7*6) = 272160
Therefore, there are 272160 ways for the procedure to be done.
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Anything what i can do for you?
Let x = 78.3
y = 87.2
σₓ = 5.6 and σ₍y₎ = 6.3
number of pieces n = 50
z = z-score value =1.96 in this case
<span> A 100(1-α)%
confidence interval for the difference in large sample means is:
(x – y) ± z x </span>√( σₓ² / n+ σ₍y₎²<span>/n)
by putting the values,
=(78.3-87.2) </span>± 1.96 x √(5.6² /50 + 6.3² /50)<span>
</span><span>= -8.9 ± 2.34
</span><span>= [-11.24, -6.56]</span>
Answer:
D. if a number has factors other than one and itself, then it is not a prime number
I believe it would be sixteen people. Hope it helps! :)