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3 years ago

Miguel baked 40 cookies with 8 ounces of chocolate chips. How many cookies could he bake with one ounce of chocolate chips ?

1 answer:

8 0

8 ounces of chocolate chips can be used to make 40 cookies so
1 ounce of chocolat3 chips can be used to make 40÷8=5 cookies

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A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following

GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line = $\dfrac{Upper \ limit + lower\ limit}{2}$

Here , confidence interval : (-0.181, 1.529)

Estimated slope of sample regression line = $\dfrac{-0.181+1.529}{2}$

$=\dfrac{1.348}{2}\\\\=0.674\ \ \ \ [\text{ positive}]$

⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

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3 years ago

A friend provides 100 pieces of supporting evidence for a mathematical statement. What is the minimum number of counterexamples

seraphim [82]

Answer:

1 true good statement can prove his friend wrong.

Step-by-step explanation:

Answer is 1.

7 0

3 years ago

A salesperson at a jewelry store earns 4% commission each week. Last week, Heidi sold $680 worth of jewelry. How much did make

Charra [1.4K]

Answer:

$27.2

Step-by-step explanation:

680x0.04=. 27.2

She made $27.2 last week

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3 years ago

Pam had some toy cars. She got 4 more cars. Then her friend gave her 2 more cars. Now Pam has 18 toy cars in all. Which equation

grigory [225]

A behsnsnnfnfnfhdbdbdnd hdjdns. Dhjdns fjjd rush d end d s

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3 years ago

What is a way that you use synthesis in your everyday life?

Korolek [52]

Answer:

shopping for a car

Step-by-step explanation:

lets say you want to buy a new car, you ask yourself, hmm, which one is the best for me. or which car has the best milage. those type of things

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3 years ago