the complete question is Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute. The original pulse rates are measure with units of "beats per minute". What are the units of the corresponding z scores? Choose the correct choice below.
A. The z scores are measured with units of "beats per minute."
B. The z scores are measured with units of "minutes per beat."
C. The z scores are measured with units of "beats."
D. The z scores are numbers without units of measurement.
we know that
A z-score is the number of standard deviations from the mean a data point is. But more technically it’s a measure of how many standard deviations below or above the population mean a raw score is
The z scores are numbers without units of measurement
therefore
the answer is the option D
Can you confirm is hypotenuse should be AC...
ADB would make another right triangle if I am correct and you could use the pyth theorem to determine AB<span />
Answer:
Step-by-step explanation:
To find the area subtract the area of the semicircle from the area of the rectangle.
Although the line isn’t there, if you imagine there is one, then you will see that you form a rectangle which is the same line as the semicircle’s diameter.
The area of rectangle is:
⇒ 
⇒ 
⇒ 
The area of the semicircle;
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⇒ 
*Note here that the radius is half the diameter, so it is 7cm, not 14cm
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Finally subtract the two areas;
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⇒ 
30 minutes
Because it would take her an hour to go 8 miles and she is only going 4 so it is half an hour
It might be A
Example: I tried to do the math and i came out with 1/20 so try it. i’m very sorry if it’s wrong
