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krek1111 [17]
4 years ago
12

Help with this question, ASAP!!

Mathematics
2 answers:
ruslelena [56]4 years ago
7 0
7352801001726)2920 am due s
allochka39001 [22]4 years ago
3 0

Answer:

The answer to your question is the third option

Step-by-step explanation:

a)               0.023x³ + 0.4x² - 2.1x + 8.3

                 0.023(2)³ + 0.4(2)² - 2.1(2) + 8.3

                 0.023(8) + 0.4(4) - 2.1(2) + 8.3

                 0.184 + 1.6 - 4.2 + 8.3

                 10.084 - 4.2

                 5.884

b)              0.023(4)³ + 0.4(4)² - 2.1(4) + 8.3          

                 0.023(64) + 0.4(16) - 8.4 + 8.3

                 1.472 + 6.4 - 8.4 + 8.3

                 16.172 - 8.4

                7.772

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In a recent school newspaper survey, 3,000 randomly selected teenagers were asked to cite their primary transportation method to
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Answer: There is a 90% chance that the true proportion of teenagers who drive their own car to school will lie in (0.5907, 0.9093).

Step-by-step explanation:

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Here, A 90% confidence interval to estimate the true proportion of teenagers who drive their own car to school is found to be (0.5907, 0.9093).

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Hence, correct interpretation is : There is a 90% chance that the true proportion of teenagers who drive their own car to school will lie in (0.5907, 0.9093).

7 0
3 years ago
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