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andriy [413]
3 years ago
5

The number line represents Allie’s scores in the first two rounds of a card game.

Mathematics
1 answer:
olganol [36]3 years ago
7 0

Answer:

Allie gains 4, she loses 4, she has 0 points.

Step-by-step explanation:

The arrow shows it. Round 1 goes 0 to 4. Round 2 goes 4 to 0.

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The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i
Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

Step-by-step explanation:

We have the following info given from the problem:

n= 800 the random sample of voters selected from the town

\hat p = 0.34 represent the proportion of residents favored construction

p_o = 0.30 represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And with the data given we have:

z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469  

7 0
2 years ago
PLZ HELP ASAP AND SHOW UR WORK!!!! THE ≤. WITHOUT THE LINE IN THE BOTTOM
Marina86 [1]

Answer:

B

Step-by-step explanation:

\frac{2}{3}x +6

subtract 6 from both sides

\frac{2}{3}x

divide by 2/3(or multiply by 3/2)

x

and thats your answer

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If 25% of the cars in the parking lot are white, how many cars in the parking lot are silver?
S_A_V [24]
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Which word problem below could be represented by the number sentence 6 X 4= ?
Lady bird [3.3K]

Answer:

O D. Luis had 6 pencils. He placed them in 4 groups. How many were in each group?

Step-by-step explanation:

this makes more sense, since he had 6 pencils and put them in 4 different groups. so, 6 *4 = 24 c:

6 0
2 years ago
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