Radius = Diameter ÷ 2 = 12 ÷ 2 = 6
Area =
= pi x 6 x 6 = 113.04 (Answer B)
Complete question :
X: 3, 4, 5, 6
f(x): .25, .55, .15, .05
Answer:
0.60
Step-by-step explanation:
Given the data:
Variance (s) :
Σx²*f(x) - E(x)²:
E(x) = (3*0.25) + (4*0.55)+(5*0.15)+(6*0.05) = 4
Σx²*f(x) - E(x)²: [(3^2 * 0.25)+(4^2 * 0.55)+(5^2 * 0.15)+(6^2 * 0.05)] - 4²
16.6 - 16 = 0.6
Answer:
I also need help in this ....high five
Step-by-step explanation:
Three solutions are 0.2, 0.8, 3/5
Answer:
The correct option is;
A) The average wait time for the 300 customers polled
Step-by-step explanation:
Here we note that a population parameter is a quantity that is a numerical characteristic of the entire population. It depicts the nature of the entire population or group. It is however not a statistic or sample or population subset data.
Example of population parameter includes the average values of a given statistic such as the average number of snack in a bag.
Therefore, the population parameter in the question is the verge wait time of 300 customers polled.