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Verizon [17]
3 years ago
11

According to the empirical rule, if the data form a "bell-shaped curve" (normal distribution), approximately what percent of the

observations will be contained within + /- 2 standard deviations from the arithmetic mean. (Select the correct answer from the choices below.)A. 99.7B. 95.0C. 75.0D. 68.3
Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer: B. 95.0

Step-by-step explanation:

In statistics , the famous empirical rule says that " if the data is normally distributed then 68% of the observations will be contained within \pm1 standard deviations from the arithmetic mean, 95% of the observations will be contained within \pm2 standard deviations from the arithmetic mean and 99.7% of the observations will be contained within \pm3 standard deviations from the arithmetic mean".

Hence, B is the correct answer.

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Answer:

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4 0
3 years ago
PLEASE HELP AND HURRY UNDER 5 MINUTES
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8 0
4 years ago
I need help with this
Anna11 [10]
Heyy!
Here’s ur answer, hope it helps-
Area of parallelogram= base*heigh
=15*20
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Therefore your answer is 300 square units-
:)
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3 years ago
Is the relation a function? If so why or why not?
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4 0
3 years ago
Read 2 more answers
Solve the equation -2.6b + 4 = 0.9b - 17
Soloha48 [4]
If you are solving for b:
-2.6b+4=0.9b-17 <subtract 4 from both sides
-4 -4
-2.6b =0.9b-21 <subtract 0.9b from both sides
-0.9b -0.9b
-3.5b = -21 <divide by -3.5
--------- ------
-3.5 -3.5

b=6
6 0
3 years ago
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