Estimate 2/3+1/6 how do I estimate this ASAP PLZ explanation !!!!!!!!

Mathematics

2 answers:

guapka [62]3 years ago

8 0

Answer: 2/3 + 1/6 = 5/6

Step-by-step explanation:

To estimate, it may be helpful to envision a circle cut into 6 slices or wedges like a pizza. 2/3 would be 4 slices, 1/6 is 1 slice.

5 slices out of 6, so 5/6

Aloiza [94]3 years ago

6 0

Answer: 5/6

Step-by-step explanation: 4 / 6 + 1 / 6 = 5/6

all you have to do is make 2/3 become 4/6

You might be interested in

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

irakobra [83]

Answer:

We need a sample size of at least 383.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

85% confidence level

So $\alpha = 0.15$ , z is the value of Z that has a pvalue of $1 - \frac{0.15}{2} = 0.925$ , so $Z = 1.44$ .

How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 85% confidence level with an error of at most 0.03

We need a sample size of at least n.

n is found with $M = 0.03, \pi = 0.21$