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Ivenika [448]
3 years ago
9

The MAX light rail in Portland, OR has a waiting time that is normally distributed with a mean waiting time of 5 minutes with a

standard deviation of 2.9 minutes. A random sample of 40 wait times was selected, what is the probability the sample mean wait time is under 4 minutes? Round answer to 4 decimal places.
Mathematics
1 answer:
Alika [10]3 years ago
5 0

Answer:

34

Step-by-step explanation:

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Well first, you have to know the distance formula. You plug the coordinates into it and you get the answer.

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Division of whole numbers is associative, true or false? If false then what is correct? Plz and Thank you for the help!!
Sav [38]

Answer:

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4 0
3 years ago
HELP ASAP FOR BRAINLIEST: The mean score for a standardized test is 1700 points. The results are normally distributed with a sta
WITCHER [35]

Answer:

Step-by-step explanation:

Since the results for the standardized test are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = test reults

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σ = standard deviation

From the information given,

µ = 1700 points

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P(x > 1700) = 1 - P(x ≤ 1700)

For x = 1700,

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Looking at the normal distribution table, the probability corresponding to the z score is 0.5

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8 0
3 years ago
For the polynomial x5 – 2x6 + 3, which of these statement(s) is true? Select all that apply A. The polynomial is a trinomial. B.
Evgen [1.6K]

Answer:

A, B and D

Step-by-step explanation:

A. The polynomial is a trinomial.

A trinomial refers to a polynomial with three terms. This option is correct.

B. The degree of the polynomial is 6.

Degree refers to the highest power in the polynomial. This option is correct.

C. The leading coefficient is 1

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D. Written in standard form, the polynomial is –2x6 + x5 + 3.

This is correct.

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2 years ago
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Dmitry [639]
13/17 is at the lowest because they are both prime numbers.
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2 years ago
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