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azamat
3 years ago
9

Evaluate the expression 3 * 5 x when x is 2.

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0
X equals 30 I’m not exactly sure how to explain this to you
Ivahew [28]3 years ago
5 0

Answer:

3 * 5x

3 * 5(2)

3 * 10

30

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Simplify the expression. 2a^-5 m^5
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3 years ago
I’m need help on these questions can any one answer them
LUCKY_DIMON [66]

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5. WAX and XAZ

6. WAZ and ZAX

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8.  ZAY and YAU

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6 0
3 years ago
Describe the sampling of p hat. Assume that the size of the population is 25000 n= 300 p=0.7
katrin [286]

The mean of the given sample data is 210, and the standard deviation is 7.937.

Given size 'n' = 300

The population proportion 'p' = 0.7

Let 'x' be the random variable of the binomial distribution

a)  mean of the binomial distribution  = n p = 300 × 0.7

                                                              μ  = 210

b)  variance of the binomial distribution

⇒ n p q

⇒ 300 × 0.7 ×0.3

⇒ σ² = 63

The standard deviation of the binomial distribution:

⇒ √n p q = √63 = 7.937

Thus, the mean of the given sample data is 210, and the standard deviation is 7.937.

Learn more about the standard deviation here:

brainly.com/question/16555520

#SPJ1

The question seems to be incomplete the correct question would be:

describe the sampling of p hat. Assume that the size of the population is 25000 n= 300 p=0.7 a) Determine the mean of the sampling distributionb) Dtermine the standard deviation of the sampling distribution

3 0
1 year ago
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