2 years ago

THE answer is... Tell me you will get 10 points

Mathematics

1 answer:

frez [133]2 years ago

5 0

Answer:

First option: 3 blocks to the right, 5 blocks down

Step-by-step explanation:

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Suppose you have a sample of size 42 with a mean of 30 and a population standard deviation of 7.4. What is the maximal margin of

9966 [12]

Answer:

The maximal margin of error associated with a 95% confidence interval for the true population mean is 2.238.

Step-by-step explanation:

We have given,

The sample size n=42

The sample mean $\bar{x}=30$

The population standard deviation $\sigma=7.4$

Let $\alpha$ be the level of significance = 0.05

Using the z-distribution table,

The critical value at 5% level of significance and two tailed z-distribution is

$\pm z_{\frac{0.05}{2}}=\pm 1.96$

The value of margin of error is

$ME=z_{\alpha/2}(\frac{\sigma}{\sqrt{n}})$

$ME=1.96(\frac{7.4}{\sqrt{42}})$

$ME=1.96(1.1418)$

$ME=2.238$

The maximal margin of error associated with a 95% confidence interval for the true population mean is 2.238.

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3 years ago

What is the expected price of a calculator in the year 2000 if it costs $13 in 2015

Mumz [18]

Answer:

$10.90

Step-by-step explanation:

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3 years ago

Miss Guydan and her friend Alyssa are collecting food for the local food bank. Their goal is to collect 2100 pounds of food. The

Sergeeva-Olga [200]

Answer:

400+25x=2100

Step-by-step explanation:

400 is independent variable 25x is a dependent variable 2100 is independent variable

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3 years ago

Sally goes out to lunch and has the option of a soup or a salad and then a turkey, ham, or club sandwich. Which tree diagram cor

lara [203]

The answer should be B

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The number line shows four points. Which point represents the approximate location of 83?

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3 years ago