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Anastasy [175]
3 years ago
5

Fifty-two of 80 marbles are red. What percent of the marbles are red?​

Mathematics
2 answers:
lukranit [14]3 years ago
5 0

Step-by-step explanationkkf

Kobotan [32]3 years ago
3 0

Answer:

65% of the marbles are red.

Step-by-step explanation:

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A laboratory tested n = 98 chicken eggs and found that the mean amount of cholesterol was LaTeX: \bar{x}x ¯ = 86 milligrams with
Harrizon [31]

Answer:

1.3859

Step-by-step explanation:

The formula for Margin of Error is given as:

Margin of Error = Critical value × Standard Error

Critical value = z score

In the question, we are given a confidence interval of 95%.

Z score for a 95% confidence level is given as: 1.96

Hence, critical value = 1.96

Standard Error = σ / √n

Where n = number of samples = 98 chicken eggs

σ = Standard deviation = 7 milligrams

Standard Error = 7/√98

Standard Error = 0.7071067812

Hence, Margin of Error = Critical value × Standard Error

Margin of Error = 1.96 × 0.7071067812

Margin of Error = 1.3859292911

Therefore, the margin of error corresponding to a 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is approximately 1.3859

8 0
3 years ago
Consider two people where one person is 25​% taller than the other but proportioned in exactly the same way.​ (That is, the tall
egoroff_w [7]

Answer:

46.25

Step-by-step explanation:

If they are proportioned exactly the same, then everything on the taller person is <em>25%</em> larger

<em>37*1.25</em> (for them being <em>125%</em> the size of the smaller person)

46.25

4 0
3 years ago
Easy geometry <br> I’m stuck pls help<br> Show work :)
Lynna [10]

Answer:

x=9.5

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Step-by-step explanation:

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8 0
3 years ago
g The tensile 0.2 percent offset yield strength of AISI 1137 cold-drawn steel bars up to 1 inch in diameter from 2 mills and 25
Vitek1552 [10]

Answer:

107.50

Step-by-step explanation:

Given the following :

Midpoint (S)____F

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Calculating the mean and standard deviation using a calculator :

The mean(m) of the data above = 98.12

Standard deviation (sd) = 4.02

Proportion = 99% of population

From z table = 2.33

Using :

Zscore =(x - m) / sd

2.33 = (x - 98.12) / 4.02

2.33 * 4.02 = x - 98.12

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