State whether each statement is true or false,the sum of two positive integers is positive?
1 answer:
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The mean and standard deviation for the number of boys in the 950 babies are 475 and 15.41, respectively
<h3>How to determine the mean and the standard deviation?</h3>From the complete question, we have:
P(boy)= 0.5
Sample size = 950
The mean is then calculated as:
This gives
Evaluate
The standard deviation is calculated as:
This gives
Evaluate
Hence, the mean and standard deviation for the number of boys in the 950 babies are 475 and 15.41, respectively
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Given:
The graph passes through the points (0,-20) and (4,10).
To find:
The equation of line that most closely represents the line depicted in the graph.
Solution:
If a line passing through two points, then the equation of line is
The given line passes through the points (0,-20) and (4,10). So, the equation of line is
Subtracting 20 from both sides, we get
The function form is
f of x equals fifteen halves times x minus 20.
Therefore, the correct option is B.