Answer:
Non-Random Sample
Step-by-step explanation:
A sample in which each element has an equal chance of being selected is known as a random sample. Otherwise, a sample is said to be a non - random sample.
An engineer selects five cameras on Monday, Tuesday, and Wednesday at random between 3 pm and 4 pm each day. So, the cameras that are not in the process of production between 3 pm and 4 pm have no chances of being selected.
So, each camera does not have an equal chance of being selected.
This is an example of a non - random sample.
65% divided by 100% = 0.65
0.65 is 65/100
65/100 in simplest form is 13/20
65 is divided by 5 to arrive at 13
100 is divided by 5 to arrive at 20
13/20 is the simplest form of 65% because both numbers, 13 and 20, no longer have a common factor left.
Answer: the answer is 18
Step-by-step explanation:
It is a double negative so just show below this equation
9-(-9)
9+9. Because of double negative
18
Since order does not matter, ie Joe, Jim, and Dave is the same as say Jim, Dave, and Joe. You would use the "n choose k" formula for unique combinations...
n!/(k!(n-k)!), where n=number of possible selections and k=selections made...
12!/(6!(12-6)!)
12!/(6!6!)
924
So there are 924 possible different committees of six people from a pool of twelve people.
Answer:
The answer I got was 86.
Step-by-step explanation:
This is called the central angle theorem. This means that the central angle, which in this case is QOR (let the origin (middle) be O), is twice the size of the inscribed angle, which is QPR.
That means: 2 x QPR = QOR
→ 2 * (x-33) = x + 20
→ 2x - 66 = x + 20
Collect the like terms
→ 2x - x = 20 + 66
x = 86