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statuscvo [17]
3 years ago
9

How to solve 19,20,21??????

Mathematics
1 answer:
Doss [256]3 years ago
3 0

Answer:

19. undefined, thus no answer

20. yes, answer is 0

21. yes, answer is 5

Step-by-step explanation:

all requires application on the laws and special cases of logarithm

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allsm [11]

Answer:

We estimate to have 8.33 times the number 6 in 50 trials.

Step-by-step explanation:

Let us consider a success to get a 6. In this case, note that the probability of having a 6 in one spin is 1/6. We can consider the number of 6's in 50 spins to be a binomial random variable. Then, let X to be the number of trials we get a 6 out of 50 trials. Then, we have the following model.

P(X=k) = \binom{50}{k}(\frac{1}{6})^k(\frac{5}{6})^{50-k}

We will estimate the number of times that she spins a 6 as the expected value of this random variable.

Recall that if we have X as a binomial random variable of n trials with a probability of success of p, then it's expected value is np.

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3 years ago
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Tanya [424]

Answer/Step-by-step explanation:

a. The the class width for the 1st, 2nd, 3rd, and 5th row equal 5 in the frequency distribution. Whereas, in the 4th row, the class width is 4 (49 - 45). This makes the construction incorrect.

b. Here, the upper limit of each consecutive class was used as the lower limit if the next class. For example, 9 is a member of the first class, which is the upper limit if the class in the first row, it ought not to be included as a member of the next class in the second row.

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d. Different class width were used.

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Row 2 class width = 19 - 14 = 5

Row 3 class width = 25 - 20 = 5

Row 4 class width = 28 - 26 = 2

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kondaur [170]

Answer:

The number that is divisible by 3 is 138.

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Hope I helped!

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The table shows how Erica's essay will be scored.
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42.75 is the correct answer!
6 0
3 years ago
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