3 years ago

What's the value of x?

1 answer:

5 0

The value of X is 11 because if you reduce the numbers with greatest common factors twice, then commutative property to record the terms, and calculate to get 11x

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"Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political

melomori [17]

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

Sample size : n= 1000

Sample proportion: $\hat{p}=\dfrac{470}{1000}=0.47$

The standard error for proportion is given by :-

$S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}$

$S.E.=\sqrt{0.0002491}$

$S.E.=0.0157829021412\approx0.0158$

[Rounded to the nearest four decimal places.]

Hence, the standard error for the confidence interval = 0.0158

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3 years ago

There are 27 performances in a dance recital. The ratio of hip hop to ballet is 5:4.

Aloiza [94]

Answer:

15 hip hop performances

12 ballet performances

Step-by-step explanation:

5:4 (multiply by 3)

15:12

6 0

3 years ago

In order to evaluate the performance of the artificial pancreas, a researcher randomly draw 5 rats as a control group, and draw

forsale [732]

Answer: 42.190

Step-by-step explanation:

From the question, the population variances are not equal. The calculation has been attached in the picture below.

The answer is 42.190 to 3 decimal places.

4 0

3 years ago

Write this relationship as a ratio, with kilograms as units. 300 g to 5 kg. (Express your answer using a colon. Leave spaces bet

Bad White [126]

Answer:

0.3 kg : 5 kg

Step-by-step explanation:

just simplified

BRAINLIEST PLS!

8 0

3 years ago

Read 2 more answers

Solve this proportion x/14 6/21

Gemiola [76]

Answer:

X=4

Step-by-step explanation:

Solution: x equals 4

x/14-(6/21)=0

1. Simplify 2/7

x/14- 2/7 is 0

It’s too much steps

5 0

3 years ago