It is estimated that as many as 4.5 million Irish arrived in America between 1820 and 1930. Between 1820 and 1860, the Irish constituted over one third of all immigrants to the United States. In the 1840s, they comprised nearly half of all immigrants to this nation.
Answer: B. R= 0.45
Explanation: 'r' usually referred to as the correlation coefficient used to measure the strength and direction of the statistical relationship or correlation between two linear variables. It ranges between -1 to 1
The strength of a relationship is measured by its closeness to 1 or -1, while 0 indicates no correlation.
A positive r value shows a positive relationship that is increase on one variable leads to increase in the other while a negative r value shows a negative correlation, that is increase in one variable leads to decrease in the other and vice versa.
r value close to -1 indicates the strength of a negative correlation while r value close to 1 indicates the strength of a positive correlation.
In the scenario above, the most probable r value to indicate positive relationship between consentiousness and regular checkup is 0.45.
Answer: C. Slow-to-warm-up
Explanation: According to Thomas and Chess,there are different temperaments in children one of which is Slow-to-warm-up. Slow-to-warm-up are kids who find it hard to move with the changes of their environment,they are generally mellow,less active from birth,and might find it very difficult to adjust to new situations.
One of the example would be: <span>Asking women if they have had an abortion
Women who had abortion usually experienced a drastic emotional pressure right before and after the abortion process.
Finding out the harm of abortion by collecting the data from women who never actually experienced wouldn't represent the closest situation compared to the women who actually experienced it.</span>
When the body is given weakened/dead pathogenic material this helps build up an immune system towards the actual live infection. It prepares the body for the infection so that the person does not get sick.
