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2 years ago

8

Hector has 10 cups of flour. Which equation shows how to determine the number of Two-fifths of a cup servings there are in the 1

0 cups of flour? first on to answer is brianlyist.

2 answers:

torisob [31]2 years ago

7 0

Answer:

answer is b

"

/

Step-by-step explanation:

Anastasy [175]2 years ago

5 0

Answer:

b

Step-by-step explanation:

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One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui

Oksana_A [137]

Answer: 90% confidence interval would be $(-0.2483,-0.0717)$

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, $p_m=\dfrac{10}{50}=0.2$

n₂ = 50

Number of electronic tagged penguins = 18

So, $p_e=\dfrac{18}{50}=0.36$

So, at 90% confidence interval, z = 1.28

So, interval would be

$(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)$

Hence, 90% confidence interval would be

$(-0.2483,-0.0717)$

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2 years ago

Fundamental Counting Principle (L1)

Gala2k [10]

9 and 14 are the answers

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Aa please help thanks if you do (:

frosja888 [35]

I believe the answer is 60

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Determine the values of the letters to complete the conditional relative frequency table by column.

weqwewe [10]

Answer:

$a=0.1\\b=0.85$

Step-by-step explanation:

In this problem we are calculating the relative frequency conditional by columns.

Therefore the sum of the frequencies of each column must be equal to 1.

Then we use this condition to calculate the values of a and b

So:

$0.9 + a = 1\\a = 1-0.9\\a = 0.1$

$b +0.15 = 1\\b = 1-0.15\\b = 0.85$

Finally

$a=0.1\\b=0.85$

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prisoha [69]

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