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n200080 [17]
3 years ago
5

Multiply row 2 by 2, and insert it for row 2: 4−1−4 −231 8−46 −7 −2 30 4−1−4 8−41 −7 30

Mathematics
1 answer:
Hatshy [7]3 years ago
3 0

Answer:-4,6,2,-4

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
A genetic experiment with peas resulted in one sample of offspring that consisted of 438 green peas and 173 yellow peas.
Andre45 [30]

Answer:

a

The 95% confidence interval is 0.2474 < p < 0.3188

b

  The result obtained does not contradict expectation

Step-by-step explanation:

From the question we are told that

   The number of green peas is  k =  438

   The number of yellow peas is u =  173

Generally the sample size is mathematically represented as

       n  =  k + u

=>    n  = 438 + 173

=>    n  = 611

Generally the sample proportion for yellow peas is

      \^ p = \frac{u}{n}

=>   \^ p = \frac{173}{611 }

=>   \^ p = 0.2831

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

=>  E =  1.96 * \sqrt{\frac{ 0.2831 (1- 0.2831)}{611} }

=>  E =  0.0357

Generally 95% confidence interval is mathematically represented as  

      \^ p -E <  p <  \^ p +E

=>     0.2831  -0.0357

=>     0.2474 < p < 0.3188

From the question we are told that it was expected that 25% of the offspring peas will be yellow

   Now from the 95% confidence interval obtained we see that the expected sample proportion(25% ) falls within it so  it means that the result obtained does not contradict expectation

7 0
3 years ago
Could you guys lo? I just don’t get it
Nataly_w [17]

Answer:

x = 5.6

Step-by-step explanation:

Look at the given congruent angles and what sides are opposing to write the proportions. After writing  the proportions solve for the unknown x.

8 0
3 years ago
the table shows the baseball game attendance for three consecutive nights. About how many people attended the three games?​
irina [24]

Answer:

About 150,000

Step-by-step explanation:

Round because you are finding <u>about </u>how many people attended (I’m just doing it in my way; are multiple ways to round and multiple answers):

52,104 ≈ 52,100

48,899 ≈ 48,900

49,023 ≈ 49,000

Add:

52,100 + 48,900 + 49,000 = about 150,000 people attended

8 0
3 years ago
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