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.
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Answer:
Explanation:
you find out the amount its going up or down on both sides then you want to divide them then you got your answer
Answer:
javanese is indonesian, tagalog is philipines and chinese is singapore
Explanation:
Answer:
Explanation:
Increased consumption leads to an increase in the production of goods, which in turn puts stress on the environment. Globalization causes rise in the amount of fuel that is consumed in transporting these products has led to an increase in the pollution levels in the environment.
Seventy percent of Chinese households burn coal or biomass for cooking and heating, which contaminates indoor air. Adverse effects of combustion-related air pollution include reduced fetal and child growth, pulmonary disease including asthma, developmental impairment, and increased risk of cancer.
Coal is the leading culprit of air pollution in China. 75% of the premature deaths are caused by the 152 coal-fired power plants in Hebei Province. Air pollution will remain a serious problem in China as long as coal continues to be the country's major energy source
People should live with virtue and respect nature
