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2 answers:
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Answer:
And we can find this probability with this difference:
If we use the normal standard table or excel we got:
And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %
Step-by-step explanation:
Let X the random variable that represent the birth weights of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And we can use the z score formula given byÑ
If we apply this formula to our probability we got this:
And we can find this probability with this difference:
If we use the normal standard table or excel we got:
And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %
Answer: Their equations have different y-intercept but the same slope
Step-by-step explanation:
Since, the slope of the line passes through the points (2002,p) and (2011,q) is,
Similarly, the slope of the line asses through the points (2,p) and (11,q) is,
Since,
Hence, both line have the same slope.
Now, the equation of the line one having slope and passes through the point (2002,p) is,
Put x = 0 in the above equation,
We get,
The y-intercept of the line one is
Also, the equation of second line having slope and passes through the point (2,p)
Put x = 0 in the above equation,
We get,
The y-intercept of the line one is
Thus, both line have the different y-intercepts.
⇒ Third option is correct.