<span>1. In a sample of 625 airline travelers, 485 collected "airline miles" toward free trips. What does the number 140/625 represent?
The sample proportion of the travelers who do not collect airline miles
3.A research group had a stack of survey responses. The number of respondents was more than 5000 and fewer than 5500. When the researchers divided the respondents into 13 equal groups, there were no extra respondents. Similarly, there were no extra respondents when they divided the responses into 7 equal groups or 11 equal groups. How many respondents were there?
5005
5005 / 13 = 385
5005 / 7 = 35,035
5005 / 11 = 455
6. a. A poll of 150 voters shows that a candidate is preferred by 56% of the voters while 44% prefer the opponent. Should the candidate be concerned? Explain.
150 voters = 84 candidate ; 66 opponent
The candidate can be confident that for every 150 voters, 84 of them will vote for him. However, 150 is a small number compared to a population, thus, the candidate must continue his campaign to turn voters into his favor.
b. A later poll of 600 voters shows the candidate is preferred by 55% of the voters. Should this candidate feel more or less confident, given the results of the second poll? Explain.
600 x 55% = 330 voters are for the candidate. The candidate can feel more confident because the initial poll rating still holds true as the number of sample population increases. </span>
You can haul 28 bags of cement.
Step-by-step explanation:
Given,
Weight limit of truck = 2100 pounds
Weight of each bag of cement = 75 pounds
Let,
x be the number of cement bags that you can haul
Weight of each bag * Number of bags = Weight limit
Dividing both sides by 75
You can haul 28 bags of cement.
Keywords: division, equality
Learn more about division at:
#LearnwithBrainly
X = 7
8(7) = 5(7) + 21
56 = 35 + 21
56 = 56
Answer:
22
Step-by-step explanation:
Basically you can think of Devaughn as 3x and Sydney as 1x, which gives you 4x=88. 88/4= 22, so Sydney is 22
Answer:
The mistake was on your second step where you took b to be +6, yet it has to be -6.
