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irakobra [83]
3 years ago
14

Select the correct answer. If a six-sided die is rolled 30 times, how many times can you expect to get a 6?​

Mathematics
2 answers:
solniwko [45]3 years ago
6 0

Answer:

5

Step-by-step explanation:

6 over 30 simplify it and boom (divide 30 by 6)

rusak2 [61]3 years ago
5 0

Answer:

If you rolled a six-sided die and rolled it 30 times you would have expected an 6 about 5 times so your answer would be B.

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According to the empirical (69-95-99.7) rule, if a random variable z has a standard normal distribution, then approximately 95%
Dmitry_Shevchenko [17]

Using z-scores, it is found that the value of z is z = 1.96.

-----------------------------

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean \mu and standard deviation \sigma, is given by:  

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • Each z-score has an associated p-value, which is the percentile.

  • The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
  • The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
  • The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
  • Thus, the value of Z is 1.96.

A similar problem is given at brainly.com/question/16965597

7 0
2 years ago
When purchasing bulk orders of​ batteries, a toy manufacturer uses this acceptance sampling​ plan: Randomly select and test 49 b
Brilliant_brown [7]

Answer:

Step-by-step explanation:

Given that A shipment contains 6000 ​batteries, and 1​% of them do not meet specifications.

Sample size =49

If x is the number of batteries not meeting specifications then

x is binomial with n =49 and p = 0.01

Because i) each toy is independent of the other

ii) There are only two outcomes

Probability whole shipment is accepted = Prob (X≤3)

=0.9885

Hence almost all shipments would be accepted.

4 0
3 years ago
James Wrote the number 8,980,000 in scientific notation which number did he write
Colt1911 [192]
<span>8,980,000 = 8.98 x 10</span>⁶
6 0
3 years ago
What is the slope and y-intercept of the graph?<br><br><br><br> Slope: <br><br><br> y-intercept:
mr Goodwill [35]
Y = 0 + 2

Since it is a horizontal line, the slope is m = 0.

For the y-intercept, the line passes through 2 so therefore, the y-intercept is 2 positive.
6 0
3 years ago
Read 2 more answers
A cube has a surface area of 2646 cm squared what is its volume ​
Dominik [7]

Answer:

9261

Step-by-step explanation:

V=6A3/2

36=6·26463/2

36=9261

8 0
3 years ago
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