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3 years ago

What is the probability of obtaining seven tails in a row when flipping a coin?

Mathematics

1 answer:

Paladinen [302]3 years ago

8 0

Step-by-step explanation:

The probability of getting tails each time is 1/2. Seven times in a row, the probability is:

P = (1/2)^7

P = 0.0078125

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Licemer1 [7]

Answer:

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Step-by-step explanation:

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James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the employee training programs of AFB banks.

BartSMP [9]

Answer: (24.02,25.98)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given : Sample size : n= 100

Sample mean : $\overline{x}=25\text{ hours}$

Standard deviation : $\sigma=5\text{ hours}$

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

The confidence interval for population mean is given by :-

$\overline{x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=25\pm(1.96)\dfrac{5}{\sqrt{100}}\\\\=25\pm0.98\\\\=(25-0.98,\ 25+0.98)=(24.02,25.98)$

Hence, the 95% confidence interval for the population mean of training times is (24.02, 25.98).

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4 years ago

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AleksandrR [38]

2x4=8Step-by-step explanation:

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3 years ago

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Virty [35]

Answer:

The Slope of a line formula is given by

m=y2 - y1/ x2 - x1

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3 years ago

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Hunter-Best [27]

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