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3 years ago

Circle the fraction greater than 3/10? 1/33/114/15Or 29/100

Mathematics

1 answer:

mihalych1998 [28]3 years ago

3 0

Answer:

1/3 is the only fraction here that is greater than 3/10.

Step-by-step explanation:

Convert these to decimals first, which can make it easier.

1/3 as a decimal is 0.33333333333333333333333333... which is greater than 0.3, which is 3/10.

3/11 as a decimal is 0.27272727272727.... which is LESS than 0.3, which is 3/10.

4/15 as a decimal is 0.26666666666666666666666666666666, which is less than 0.3, which is 3/10.

29/100 as a decimal is 0.29, which is less than 0.3, which is 3/10.

So the answer is 1/3.

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Step-by-step explanation:

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3 years ago

An educational psychologist wishes to know the mean number of words a third grader can read per minute.

Rama09 [41]

Answer: 208.

Step-by-step explanation:

The formula to find the minimum sample size is given by :-

$n= (\dfrac{z^*\times \sigma}{E})^2$ (1)

, where z* = critical z-value (two tailed).

$\sigma$ = Standard deviation ( from prior study ) and E = Margin of error.

As per given , we have

Margin of error : E= 0.29

Confidence level = 85%

Significance level = $\alpha=1-0.85=0.15$

Using z-table , the critical value (two -tailed)= $z^*=z_{\alpha/2}=z_{0.15/2}=z_{0.075}=1.439$

As per previous study , Variance = $\sigma^2=8.41$

$\sigma=\sqrt{8.41}=2.9$

Now, the required minimum sample size = $n= (\dfrac{(1.439)\times (2.9)}{0.29})^2$ [Substitute the values in formula (1)]

$n=(14.39)^2$

$n=207.0721\approx208$ [ Round to the next integer]

Hence, the minimum number of third graders that must be included in a sample = 208.

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4 years ago

Is 36/6 a intege NEED A WUICK ANSWER PLSS

WITCHER [35]

36/6 would simplify to 6
Integers are basically whole numbers (both positive and negative), or numbers that can be written without a fraction
Even though 36/6 is a fraction, it would simplify into a whole number so it is a integer
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3 years ago

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Step-by-step explanation:

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3 years ago

Circle the fraction greater than 3/10? 1/33/114/15Or 29/100​

Circle the fraction greater than 3/10? 1/33/114/15Or 29/100