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Yuki888 [10]
2 years ago
5

How many hours is 7:45 to 1:00

Mathematics
2 answers:
MariettaO [177]2 years ago
8 0

Step-by-step explanation:

There are 17 hours between 7:45 to 1:00

valentinak56 [21]2 years ago
3 0

Answer:

Step-by-step explanation:

5.25

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When Hailey commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 21 minutes and a
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Answer: 135 days

Step-by-step explanation:

Since the amount of time it takes her to arrive is normally distributed, then according to the central limit theorem,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

From the information given,

µ = 21 minutes

σ = 3.5 minutes

the probability that her commute would be between 19 and 26 minutes is expressed as

P(19 ≤ x ≤ 26)

For (19 ≤ x),

z = (19 - 21)/3.5 = - 0.57

Looking at the normal distribution table, the probability corresponding to the z score is 0.28

For (x ≤ 26),

z = (26 - 21)/3.5 = 1.43

Looking at the normal distribution table, the probability corresponding to the z score is 0.92

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P(19 ≤ x ≤ 26) = 0.92 - 28 = 0.64

The number of times that her commute would be between 19 and 26 minutes is

0.64 × 211 = 135 days

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3 years ago
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3² + 5²

Step 3: Evaluate

9 + 25

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