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3 years ago

40 is what percent of 160?

Mathematics

2 answers:

Setler79 [48]3 years ago

8 0

Answer:

40/100×160

Step-by-step explanation:

2/5×160

320/5

mash [69]3 years ago

4 0

Answer:

Step-by-step explanation:

percentage calculator 40 is what percent of 160=25;)

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300

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3 years ago

Evaluate the expression for x = 6 <br>3 x + 5 =

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Answer:

Step-by-step explanation:

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3 years ago

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On Monday, 341 students went on a trip to the zoo. All 6 buses were filled and 5 students had to travel in cars. How many studen

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3 years ago

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

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3 years ago