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MrMuchimi
3 years ago
5

SOMEONE HELP ME PLEASEE! who is correct?

Mathematics
1 answer:
Neporo4naja [7]3 years ago
5 0

Answer:

neither

Step-by-step explanation:

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Can 7/9 and 42/54 form a proportion
SOVA2 [1]

Answer:

yes

Step-by-step explanation:

42/54 = 6*7/6*9 = 7/9

7/9 = 42/54

8 0
3 years ago
Read 2 more answers
Gallup conducted a survey from April 1 to 25, 2010, to determine the congressional vote preference of the American voters.15 The
Lisa [10]

Answer:

p ( x > 2746 ) = p ( z > - 1.4552 )

                      = 1 - 0.072806

                      = 0.9272

This shows that there is > 92% of a republican candidate winning the election hence I will advice Gallup to declare the Republican candidate winner

Step-by-step explanation:

Given data:

51% of male voters preferred a Republican candidate

sample size = 5490

To win the vote one needs ≈ 2746 votes

In order to advice Gallup appropriately lets consider this as a binomial distribution

n = 5490

p = 0.51

q = 1 - 0.51 = 0.49

Hence n_{p} > 5  while n_{q}  < 5

we will consider it as a normal distribution

From the question :

number of male voters who prefer republican candidate  ( mean ) ( u )

= 0.51 * 5490 = 2799.9

std = \sqrt{npq} = \sqrt{5490 * 0.51 *0.49} = 37.0399  ---- ( 1 )

determine the Z-score = (x - u ) / std  ---- ( 2 )

x = 2746 , u = 2799.9 , std = 37.0399

hence Z - score = - 1.4552

hence

p ( x > 2746 ) = p ( z > - 1.4552 )

                      = 1 - 0.072806

                      = 0.9272

This shows that there is > 92% of a republican candidate winning the election hence I will advice Gallup to declare the Republican candidate winner

7 0
2 years ago
The dot plots below show the ages of students belonging to two groups of music classes:
kolbaska11 [484]

Answer:

Step-by-step explanation:

8

4 0
2 years ago
Read 2 more answers
What is the distance between P(7, 0) and Q(8, 0)?
Yuri [45]
There is no change in the y axis, so it's a vertical distance, and 8-7=1, so the distance is 1
4 0
3 years ago
jose purchased a pair of shoes for $55 , new york has a sales tax of 6%. How much is the final price with tax ?
Slav-nsk [51]

Answer:

$58.30

Step-by-step explanation:

4 0
3 years ago
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