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zavuch27 [327]
3 years ago
6

The average amount of time to finish this quiz is 26 minutes with a standard deviation of 1.2 minutes. What is the probability t

hat you will finish this quiz in 23.84 minutes or less? Write your answer as a percentage with 2 decimals.
Mathematics
1 answer:
boyakko [2]3 years ago
7 0

Answer:

What is the probability that you will finish this quiz in 23.84 minutes or less?

0.03593

Write your answer as a percentage with 2 decimals

= 3.59%

Step-by-step explanation:

The z score formula is given as:

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Mean = 26 minutes

Standard deviation = 1.2 minutes.

The probability that you will finish this quiz in 23.84 minutes or less(≤) is calculated as:

z = (x-μ)/σ

z = 23.84 - 26/1.2

z = -1.8

Probability value from Z-Table:

P(x ≤ 23.84) = 0.03593

Converting to percentage

0.03593 × 100

= 3.593

Approximately to 2 decimal places = 3.59%

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How many x intercepts does the graph of y =|x-2|+12
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Answer:

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Step-by-step explanation:

we know that

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The y-coordinate of the vertex is above the x-axis and the graph open upward

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therefore

The graph not have x-intercepts

<u><em>Verify</em></u>

For y=0

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see the attached figure to better understand the problem

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3 years ago
If the area of the triangle is 10cm^2, what is the missing height?
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Answer:

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Read 2 more answers
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