Mathematics, 23.05.2020 05:05 ashleymarina

At Preston High School, there are two candidates for student body President, Summer and Pedro Based on pre-election polling, it is estimated that 53% of the sophomores plan to vote for Summer, while 52% of the non-sophomores will vote for Pedro. There are 486 students at Preston and 130 of them are sophomores,

a. What is the probability that a randomly selected student will be a sophomore who plans to vote for Summer?

b. Who is expected to win the election

Answers: 1

Show answers

Answers

Answer from: ladybugys

a. Pr(a randomly selected sophomore student who would vote for Summer) = 0.14

b. Pedro would win the election by a margin of 6 votes

Step-by-step explanation:

Based on the pre-election polling,

Number of students at Preston = 486

Number of sophomore students = 130

Number of non- sophomore students = 486 - 130 = 356

Let us assume that all students of Preston High School will participate in the election.

1. For Summer,

i. 53% of sophomores plan to vote for Summer. So that,

53% of 130 = $\frac{53}{100}$ × 130

= 68.9

≅ 69

The number of sophomore students that will vote for Summer is 69.

ii. The number of non-sophomores that would vote for Summer = (356 - number of those that would vote for Pedro)

= 356 - 185

= 171

2. For Pedro,

i. The number of sophomore students that would vote for Pedro = (130 - number that would vote for Summer)

= 130 - 69

= 61

ii. 52% of non- sophomores will vote for Pedro. So that;

52% of 356 = $\frac{52}{100}$ × 356

= 185.12

≅ 185

a. Pr(a randomly selected sophomore student who would vote for Summer)

= $\frac{69}{486}$

= $\frac{23}{162}$

= 0.14198

≅ 0.14

b. Considering the number of students to vote for each candidate,

Summer = 69 + 171 = 240

Pedro = 61 + 185 = 246

Pedro would be expected to win the election by a margin of 6 votes.

Answer from: Quest

11/2.2 = 5 inches for the length 8.5/2.2= 3.86 inches for the width

Answer from: Quest

ummm seems that u didnt post the attachement !

Another question on Mathematics

Mathematics, 21.06.2019 13:00

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

Answers: 1

Answer

Mathematics, 21.06.2019 20:40

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

Answers: 3

Answer

Mathematics, 21.06.2019 23:50

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Answers: 3

Answer

You know the right answer?

At Preston High School, there are two candidates for student body President, Summer and Pedro Based...

Questions