Answer:
B. Data from the sample is used to estimate unknown population parameters.
Step-by-step explanation:
Estimation is a mathematical approach of ascertaining data which is almost equal or similar to the true data. To get a proper estimate, data is obtained from a sample, (that is a small collection of data), and is then used to obtain the projected population parameter.
Data is said to be overestimated when it surpasses the true value, and underestimated when it falls below the true value. Estimates simply provide an idea of what the exact or accurate value should be.
It has wide applications in mathematics when figures are approximated, as well as in business in making future predictions which inform present decisions.
Answer:
75 green tiles
Step-by-step explanation:
Green : Blue = 3 : 4
3 : 4 = x : 100
Write as fractions
3/4 = x/100
Cross Multiply (numerator * denominator / numerator * denominator)
300 = 4x
Divide both sides of the equation by 4
x = 75
75 green tiles
Hope this helps :)
Adding up all 6 probabilities gives a total of 1, which means that this is a valid distribution function. Observing that P(0) = P(5), P(1) = P(4), and P(2) = P(3), this is a symmetric distribution.
Its mean will be in the middle, which is at x = 2.5.
The standard deviation is calculated by multiplying each P(x) by the square of deviation (x - average)^2: (0.032)(0 - 2.5)^2 + (0.152)(1 - 2.5)^2 + (0.316)(2 - 2.5)^2 + (0.316)(3 - 2.5)^2 + (0.152)(4 - 2.5)^2 + (0.032)(5 - 2.5)^2 = 1.242, then taking the square root: sqrt(1.242) = 1.1145.
Answer:
No.
Step-by-step explanation:
410•10=4100 and 4100=41•100. We just need to focus on the 100. 100•100•100•100=100,000,000 which has 8 zeros, not 4 zeros.
