2 years ago

I need anyone’s help please. I will give the best answer brainliest.

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

5 0

Answer:

720

Step-by-step explanation:

Since 10 different things in one week,

=>10!/7!

=>720

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alex41 [277]

1.) 16/100 and 0.16
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5.) 6 9/10
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2 years ago

Liz wants to estimate the percentage of people who rent their home. She surveys 320 individuals and finds that 176 rent their ho

SOVA2 [1]

Answer: 0.065

Step-by-step explanation:

Given : Sample size : n= 320

The sample proportion of people who rent their home : $p=\dfrac{176}{320}=0.55$

Significance level : $\alpha:1-0.98=0.02$

Then , Critical value : $z_{\alpha/2}=2.33$

The formula to find the margin of error : -

$E=z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\\Rightarrow\ E=(2.33)\sqrt{\dfrac{0.55(1-0.55)}{320}}\\\\\Rightarrow\ E=0.064799034281\approx0.065$

Hence, the margin of error for the confidence interval for the population proportion with a 98% confidence level =0.065

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2 years ago

At a pet store, it costs $5 to wash a cat and $7.50 to wash a dog. Last week, the store made $60 dollars from washing cats and d

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D = number of dogs washed
c = number of cats washed

d = (60 - 5c) / 7.50
The 7.50 should be underneath the brackets

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3 years ago

A beverage company surveyed 450 adults to determine the demand for summer drinks.

nikklg [1K]

Answer:

Step-by-step explanation:

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C. 37
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