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Mariulka [41]
3 years ago
8

Which one of the following is it , can be more than 1

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

a c and d are all answers.

Step-by-step explanation:

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The graph shows Marcia's walk. Which statement best describes what Marcia could be doing on the interval from B to C? A. Marcia
vodomira [7]

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B. Maria is walking home

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When Brooklyn runs the 400 meter dash, her finishing times are normally distributed with a mean of 76 seconds and a standard dev
KonstantinChe [14]

Using the Empirical Rule, it is found that her finishing time will be between 70 and 82 seconds in 95% of her races.

<h3>What does the Empirical Rule state?</h3>

It states that, for a normally distributed random variable:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of  the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, the mean is of 76 seconds and the standard deviation is of 3 seconds, then:

76 - 2 x 3 = 70.

76 + 2 x 3 = 82.

Which means that values between 70 and 82 seconds are within 2 standard deviations of the mean, hence the percentage is of 95%.

More can be learned about the Empirical Rule at brainly.com/question/24537145

3 0
2 years ago
Write the percent as a fraction or mixed number in simplest form.<br><br> 0.8%
Oxana [17]

Answer:

4/5

Step-by-step explanation:

0.8 (to a fraction) 8/10

8/2=4

10/2=5

4/5

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How many seconds are in 1 and 1/3 of a minute​
grandymaker [24]

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Step-by-step explanation:

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PLSSS HELP IF YOU TURLY KNOW THISS
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