The equation line passing through a point is understood to be parallel to the x-axis. In this case, the equation should be expressed as y = b where b is any number. Since y = 14 in the point (1,14), the equation of horizontal line passing through this point is y = 14.
Answer:
E(X) = 6
Var(X) = 3.394
Step-by-step explanation:
Let X represent the number of carp caught out of the 20 fishes caught. Now, if we are to assume that each
of the (100, 20) ways to catch the 20 fishes will be equally likely.
Thus, we can say that X fulfills a hypergeometric
distribution with parameters as follows;
n = 20, N = 100, k = 30
Formula for expected mean value in hypergeometric distribution is;
E(X) = nk/N
E(X) = (20 × 30)/100
E(X) = 6
Formula for variance is;
Var(X) = (nk/N) × [((n - 1)(k - 1)/(N-1))) + (1 - nk/N)]
Var(X) = ((20 × 30)/100) × [((20 - 1)(30 - 1)/(100 - 1)) + (1 - (20 × 30/100)]
Var(X) = 6 × 0.5657
Var(X) = 3.394
Answer:
The correct answer is: C. The value is a statistic because the 6076 adults in public restrooms are a sample.
Step-by-step explanation:
A sample statistic is a piece of statistical information you get from a part of a population. In this case, 6076 adults in public restrooms.
Now you have recognized the sample, and you infer some measure from this sample. In this case, 23% did not wash their hands before exiting.
Answer:
My pretty sure its 5
(don’t count on it too much, this is my first answer)
Step-by-step explanation:
Answer:
that sucks and lol
Step-by-step explanation:
that's how I feel
