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Rudik [331]
3 years ago
12

Brian pays £475.29 a year on his car insurance. The insurance company reduces the price by 2.1%.

Mathematics
2 answers:
ad-work [718]3 years ago
4 0
Decrease number 475.29 by 2.1% of its value: New value = 475.29 ... 475.29 = - 9.98109 Rounded to maximum 2 decimals: 475.29 decreased by 2.1% ≈ 465.31 ...
Nookie1986 [14]3 years ago
3 0

Answer:

470.12??? not sure!!!!

Step-by-step explanation:

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soldier1979 [14.2K]

Answer:

Step-by-step explanation:

Probability = 4/46 = 2/23

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3 years ago
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8.23 A manufacturing company produces electric insulators. You define the variable of interest as the strength of the insulators
Kitty [74]

Answer:

The 95% confidence interval estimate for the population mean force is (1691, 1755).

Step-by-step explanation:

According to the Central Limit Theorem if we have an unknown population with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from the population with replacement, then the distribution of the sample mean will be approximately normally.

The sample selected here is <em>n</em> = 30.

Thus, the sampling distribution of the sample mean will be normal.

Compute the sample mean and standard deviation as follows:

\bar x=\frac{1}{n}\sum x=\frac{1}{30}\times 51702=1723.4\\\\s=\sqrt{\frac{1}{n-1}\sum (x-\bar x)^{2}}=\sqrt{\frac{1}{30-1}\times 232561.2}=89.55

Construct a 95% confidence interval estimate for the population mean force as follows:

CI=\bar x\pm z_{\alpha /2}\times\frac{s}{\sqrt{n}}

    =1723.4\pm 1.96\times\frac{89.55}{\sqrt{30}}\\\\=1723.4\pm 32.045\\\\=(1691.355, 1755.445)\\\\\approx (1691, 1755)

Thus, the 95% confidence interval estimate for the population mean force is (1691, 1755).

3 0
4 years ago
Answer the question on the picture!
MariettaO [177]

Answer:

64 square inches

Step-by-step explanation:

im not 100% sure but i think its right

8 0
3 years ago
The probability of choosing a winning card from a stack of cards is 5.3%.
drek231 [11]

Answer:

94.7%

Step-by-step explanation:

If it is only winning or losing cards, then you can subtract 5.3 from 100 because probability is out of 100%

100-5.3 = 94.7

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3 years ago
What is 10c-3(5c-1)=2(4c+3)-5c
Eddi Din [679]
10c-15+3-8c-6+5c
7c-18 i think so
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4 years ago
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