15% of 20 is 3
Hope this helped..
Let w equal Larry's walking speed. Then:
110/w+2=80/w-2
80w+160=110w-220
30w=380
w=12.67 ft/sec as Larry's walking speed
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Answer:
1. The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.
2. The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.
Step-by-step explanation:
Let the number of person who is older than 35 years has a hemoglobin level between 9 and 11 be x.
From the given table it is clear that the total number of person who is older than 35 years is 162.
![76+x+40=162](https://tex.z-dn.net/?f=76%2Bx%2B40%3D162)
![x+116=162](https://tex.z-dn.net/?f=x%2B116%3D162)
![x=162-116](https://tex.z-dn.net/?f=x%3D162-116)
![x=46](https://tex.z-dn.net/?f=x%3D46)
The number of person who is older than 35 years has a hemoglobin level between 9 and 11 is 46.
1.
The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is
![P=\frac{\text{Person who is older than 35 years has a hemoglobin level between 9 and 11}}{\text{Person who is older than 35 years}}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B%5Ctext%7BPerson%20who%20is%20older%20than%2035%20years%20has%20a%20hemoglobin%20level%20between%209%20and%2011%7D%7D%7B%5Ctext%7BPerson%20who%20is%20older%20than%2035%20years%7D%7D)
![P=\frac{46}{162}\approx 0.284](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B46%7D%7B162%7D%5Capprox%200.284)
The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.
2.
Person who is older than 35 years has a hemoglobin level of 9 and above is
![46+40=86](https://tex.z-dn.net/?f=46%2B40%3D86)
The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is
![P=\frac{\text{Person who is older than 35 years has a hemoglobin level of 9 and above}}{\text{Person who is older than 35 years}}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B%5Ctext%7BPerson%20who%20is%20older%20than%2035%20years%20has%20a%20hemoglobin%20level%20%20of%209%20and%20above%7D%7D%7B%5Ctext%7BPerson%20who%20is%20older%20than%2035%20years%7D%7D)
![P=\frac{86}{162}\approx 0.531](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B86%7D%7B162%7D%5Capprox%200.531)
The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.
The answer would easily be Poisson distribution
Did you know calculated is a thing?