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3 years ago

8

If n represents a number, then write an expression for three times the difference of the number and six increased by four times

the number.

2 answers:

Elenna [48]3 years ago

8 0

$3(n-6)+4n$

lbvjy [14]3 years ago

4 0

Answer:

divison and subtracion

Step-by-step explanation:

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2 years ago

What's the markdown price of this red dress

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It was marked down $18.49.

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3 years ago

Questions 1-6 of 6 | Page 1 of 1

LenKa [72]

Answer:

Blank 1 = 53 + 90 = 143

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3 years ago

The proportion of left handed people in the population is about 0.10. Suppose a random sample of 300 people is observed. (a) Wha

pantera1 [17]

Answer: $(\hat{p})\sim N(0.10,\ 0.017)$

Step-by-step explanation:

Sampling distribution of the sample proportion $(\hat{p})$ :

$(\hat{p})\sim N(p,\ \sqrt{\dfrac{p(1-p)}{n}})$

The sampling distribution of the sample proportion $(\hat{p})$ has mean = $\mu_{\hat{p}}=p$ and standard deviation = $\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}$ .

Given : The proportion of left handed people in the population is about 0.10.

i.e. p=0.10

sample size : n= 300

Then , the sampling distribution of the sample proportion $(\hat{p})$ will be :-

$(\hat{p})\sim N(0.10,\ \sqrt{\dfrac{0.10(1-0.10)}{300}})$

$(\hat{p})\sim N(0.10,\ \sqrt{0.0003})$

$(\hat{p})\sim N(0.10,\ 0.017)$ (approx)

Hence, the sampling distribution of the sample proportion $(\hat{p})$ is $(\hat{p})\sim N(0.10,\ 0.017)$

8 0

3 years ago

The product of 17 and a number

Over [174]

<span>17 x X = A, i think.</span>

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3 years ago