-chesnee-
Pagbalik ko sa classroom wala naman bago maliban sa madaming regalo at flowers sa upuan ko to the point na wala ns aking maupuan.
"Whats the occasion? It is not your birthday, youre not sick? Are you?"umiling nalang ako. Ang cute talaga netong laso na to.
"Haha silly Ribbon! Normal lang yan-
"Your saying this is normal?"
"Youre rolling your eyes on me?!"
"Yes, so what? Dont change the subject."
"Diba nga mageexplain ako but you cut me off!"
"Okay. Fine. Im sorry. Explain."
"Wow oneword man. Dont give me that look. As i was saying. Normal lang yan pag wala si Juan."
"You mean Jaypees responsible for this?"
"Sort off. Oh oh singit ka na naman di pa ako tapos. Basta pag wala si Juan things happen. Kaya ayokong wala yung inchik na yun. Pero pag nandito yun naiirita ako!"
"What is he doing to make it stop?"uw he sound so serious.
"I dont know."he doesnt look convinced. "I really dont know. Yung presence lang nya ang katapat nyang nga yan."bakit ako malungkot?
Mabuti nalang at may concern citizen at binigyan ako ng malaking plastic ba kulay black? Diba basurahan to? Ah ewan mabuti na to kesa mapagalitan nanananakoni mrs. Bagyo.
Bagay na bagay talaga yung surname ni maam sa kanya. Lagi kasi akong pinagagalitan non. Type kasi si juan. Kaya bet na bet nya pag absent si juan. May dahilan si maam para maging signal number 4!
"Ms. Sia on the board please."kasasabi ko lang.
"In one state, 52% of the voters are Republicans, and 48% are Democrats. In a second state, 47% of the voters are Republicans, and 53% are Democrats. Suppose a simple random sample of 100 voters are surveyed from each state.
What is the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state?
(A) 0.04
(B) 0.05
(C) 0.24
(D) 0.71
(E) 0.76
"Woah."sabi nung mga kaklase kong epal. Ay sorry. Breathe in, breathe out.
"Can i use a calculator maam?"mahirap ng mapahiya uli last time di ako nagsabi aba at ang bagyo ay naging delubyo.
"By all means. Yes ms. Sia."
"The correct answer is C. For this analysis, let P1 = the proportion of Republican voters in the first state, P2 = the proportion of Republican voters in the second state, p1 = the proportion of Republican voters in the sample from the first state, and p2 = the proportion of Republican voters in the sample from the second state. The number of voters sampled from the first state (n1) = 100, and the number of voters sampled from the second state (n2) = 100.
The solution involves four steps.
Make sure the sample size is big enough to model differences with a normal population. Because n1P1 = 100 * 0.52 = 52, n1(1 - P1) = 100 * 0.48 = 48, n2P2 = 100 * 0.47 = 47, and n2(1 - P2) = 100 * 0.53 = 53 are each greater than 10, the sample size is large enough.
Find the mean of the difference in sample proportions: E(p1 - p2) = P1 - P2 = 0.52 - 0.47 = 0.05.
Find the standard deviation of the difference.
σd = sqrt{ [ P1(1 - P1) / n1 ] + [ P2(1 - P2) / n2 ] }
σd = sqrt{ [ (0.52)(0.48) / 100 ] + [ (0.47)(0.53) / 100 ] }
σd = sqrt (0.002496 + 0.002491) = sqrt(0.004987) = 0.0706
Find the probability. This problem requires us to find the probability that p1 is less than p2. This is equivalent to finding the probability that p1 - p2 is less than zero. To find this probability, we need to transform the random variable (p1 - p2) into a z-score. That transformation appears below.
z p1 - p2 = (x - μ p1 - p2 ) / σd = = (0 - 0.05)/0.0706 = -0.7082
Using Stat Trek's Normal Distribution Calculator, we find that the probability of a z-score being -0.7082 or less is 0.24.
Therefore, the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state is 0.24.
With that i heard double woah.
