A.
0.257
B.
0.284
C.
0.312
D.
0.356
E.
0.548
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.
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
Given
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
116+x = 162
x = 46
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 = 46/162 = 0.62
The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.
Person who is older than 35 years has a hemoglobin level of 9 and above is 40+46 = 86
The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is
P = 82/162 = 0.531
The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.
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Which hypothesis is more useful and why?
A. The two hypotheses are equally useful.
B. Hypothesis A is more useful because it’s true.
C. Neither hypothesis is useful because they aren’t testable.
D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.
Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Immune tolerance is the lack of capacity to increase the reaction to antigens. The tolerance can either be natural or “self” tolerance. On the other hand, licensing is a kind of protein that lets replication for cells. They usually happen with eukaryotic cells and they begin with the replication of DNA.
The respiratory and circulatory system work together to deliver oxygen to body cells.
The respiratory and circulatory systems work together to deliver oxygen to body cells. The respiratory system is responsible for breathing in oxygen and expelling carbon dioxide, while the circulatory system transports oxygen-rich blood to the cells. Within the circulatory system, the heart pumps oxygenated blood through arteries to the body's tissues, where oxygen is delivered to the cells through capillaries.
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