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Aloiza [94]
3 years ago
15

Is the following number in scientific notation? Why or why not? 45.32 X 105

Mathematics
1 answer:
Georgia [21]3 years ago
5 0

Answer:

Step-by-step explanation:

No the following number is not a scientific notation because The proper format for scientific notation is a x 10^b where a is a number or decimal number such that the absolute value of a is greater than or equal to one and less than ten or, 1 ≤ |a| < 10. b is the power of 10 required so that the scientific notation is mathematically equivalent to the original number.

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andre [41]

Since sample size is > 40, we use the z-score in calculating for the confidence interval.

The formula is given as:

Confidence Interval = X ± z * σ / sqrt (n)

Where,

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z = z-score which is taken from standard distribution tables at 90% confidence interval = 1.645

σ = standard deviation = $10,780

n = sample size = 45

Substituting to the equation:

Confidence Interval = 50,340 ± 1.645 * 10,780 / sqrt (45)

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agasfer [191]

Answer:

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Step-by-step explanation:

Data provided in the question

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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