Answer:
0.45% probability that they are both queens.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes
The combinations formula is important in this problem:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
Desired outcomes
You want 2 queens. Four cards are queens. I am going to call then A,B,C,D. A and B is the same outcome as B and A. That is, the order is not important, so this is why we use the combinations formula.
The number of desired outcomes is a combinations of 2 cards from a set of 4(queens). So
Total outcomes
Combinations of 2 from a set of 52(number of playing cards). So
What is the probability that they are both queens?
0.45% probability that they are both queens.
The estimated cost is 400$
Can u tell me more about it cause I don’t understand
Answer:
Step-by-step explanation:
Any digit will work if remainders are allowed.
If you want only whole number results
9132/12 = 761
9432/12 = 786
9732/12 = 881
Answer:
The standard error of mean = 10
Step-by-step explanation:
Given a simple sample of 144 observations was taken from a large population.
The size of large sample 'n' = 144
Given sample mean and the standard deviation were determined to be 1234 and 120 respectively.
Given standard deviation of sample (S) = 120
The standard error of mean is determined by
<u>Final answer</u>:-
The standard error of mean = 10
