The number of expected males and females to brush their teeth at least twice a day are : 135 males and 147 females.
<h3>What is proportion?</h3>
Proportion refers to the part of the things or numbers which are comparable with each other. For example: the weight of the Rahul is 70kgs and weight of the Mohan is 100kgs. Thus the Mohan's weight is greater than the Rahul's weight.
The pooled samples by combining the sample proportion to that of the successes in the each samples and combining the sample sizes.
P^ = (122+160)/(210+228)= 282/438
Then multiply this pooled sample with the two sample sizes:
Expected males = n1*^p = 210(282/438) = 135.21
expected females =n2*^p = 228(282/438) = 146.79
Thus the expected numbers of males are 135 and expected numbers of females are 147.
Learn more about survey here:
brainly.com/question/17373064
#SPJ1
A progressive tax is a tax which causes the situation that the rich contribute more to the finances of the country than the poor - this means that the more one earns, the more one also pays in taxes. The correct answer is: d. Under a progressive tax, those with more income shoulder more of the tax burden.
The correct answer is: C) Great Britain's navy captured American sailors before the war began.
Because of the conflict between Great Britain and Napoleon Bonaparte's France, both countries tried to block the United States from trading with the other, which damaged and angered Americans deeply. Later on, to make things much worse, the Royal Navy of Great Britain took American sailors into the marine forces without notice to fight on its behalf. Both of these causes ultimately led to President James Madison's Declaration of War upon the British.
Answer:
debriefing
Explanation:
The researcher's disclosing of the true purpose of the study is part of the debriefing process.
Debriefing is a widely used tool to enhance learning through experience. This concept emerged as early as World War II and is widely used today to refer to a researcher's search for correlations through a series of questions or choice that are handed to a volunteer.
Many people today confuse debriefing with conversations that are done informally to meet a person. However, debriefing is beyond this situation and needs to be done with all the necessary formality by presenting an in-depth analysis of all the results of a process.