Answer:
Step-by-step explanation:
if you need help let me know
Answer:
It is the systematic random sampling
Step-by-step explanation:
I found this definition online on a khan academy website that will prove that the systematic random sampling is correct:
"Systematic random sample: Members of the population are put in some order. A starting point is selected at random, and every n^th member is selected to be in the sample."
Hope this helps!
<em>-</em><em>Karen</em>
Let the amount that the boys sold be x, the amount that girls sold will be 3x. The total will be given by:
x+3x=180
4x=180
solving for x we get:
x=180/4
x=45
Thus, boys sold $45, the girls provided 45*3=$135
Answer:
0.00000154 or 0.154 x 10^-6
Step-by-step explanation:
P (Royal Flush) = Number of ways to get a Royal Flush / Number of possible 5 card hands
Because there are 4 suits (Spades, Hearts, Clubs, Diamonds), the possible ways to get a royal flush are as follows
1) Spades (10,J,K,Q,A)
2) Hearts (10,J,K,Q,A)
3) Clubs (10,J,K,Q,A)
4) Diamonds (10,J,K,Q,A)
Hence there are 4 ways to get a Royal Flush (i.e numerator)
In order to find the number of 5 card hands, we know that a full deck as 52 cards, and we want to pick 5 cards from the deck of 52 and order does not matter. Hence
Number of possible 5 card hands =
Hence P(Royal Flush) = 4 /
= 0.00000154 or 0.154 x 10^-6