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N76 [4]
3 years ago
6

Ethan rolls a 6-sided number cube. What is the probability that he gets a number greater than 2?

Mathematics
2 answers:
Vikki [24]3 years ago
6 0
D.
This is because the probability of getting a number greater than 2 is 4/6.
Therefore, simplifying the expression gives us the fraction 2/3.
posledela3 years ago
6 0

Answer: D.  \frac{2}{3}.

Step-by-step explanation:

When we rolls a 6-sided number cube., the total outcomes would be 6.

The number of cube greater than 2 = (3,4,5,6)=4

Therefore, the probability that he gets a number greater than 2 is given by :-

P(\text{Greater than 2})=\frac{\text{Number greater than 2}}{\text{Total number}}\\\\=\frac{4}{6}=\frac{2}{3}

Hence, the probability that he gets a number greater than 2 is \frac{2}{3}.

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Xelga [282]

Answer :

15$  x   3  =  <em><u>45 </u></em>

Step-by-step explanation:

You just have to multiply the amount that kayla gets payed <em>(15$)</em> to the number of times that she mows the lawn <em>( 3 times )</em>.

<em>Then you do the eqaution which is :</em>

<u>15$  x   3   </u>  

<em>And that give you your answer which is:</em>

<u>45</u>                              :)

4 0
3 years ago
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4 years ago
To evaluate customer satisfaction, a grocery store gives double coupons to anyone who completes a survey as they enter the store
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Answer:

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3 years ago
A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true prop
Katyanochek1 [597]

Answer:   (0.367,\ 0.473)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where \hat{p} is the sample proportion, n is the sample size , z_{\alpha/2} is the critical z-value.

Given : Significance level : \alpha:1-0.99=0.01

Sample size : n= 85

Critical value : z_{\alpha/2}=2.576

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Now, the  99% confidence level will be :

\hat{p}\pmz_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.42\pm(2.576)\sqrt{\dfrac{0.42(1-0.42)}{85}}\\\\\approx0.42\pm0.053\\\\=(0.42-0.053,\ 0.42+0.053)=(0.367,\ 0.473)

Hence, the  99% confidence interval estimate of the true proportion of families who own at least one DVD player is  (0.367,\ 0.473)

3 0
3 years ago
Ben is 12 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was 4 times as old as Ishaan.
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Ben should be 19 years old. 

What are your options?
6 0
4 years ago
Read 2 more answers
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