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Natasha_Volkova [10]
2 years ago
14

What is the difference of the means of the distributions? 15 30 45 60

Mathematics
2 answers:
kotegsom [21]2 years ago
7 0

Answer:

I agree the difference is 15.

Step-by-step explanation:

valentina_108 [34]2 years ago
5 0

Answer:

The difference is 15.

Step-by-step explanation:

30-15=15

45-30=15

60-45=15

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Y + 3 = –y + 9<br><br> y = 1<br> y = 3<br> y = 6<br> y = 9
AVprozaik [17]

Answer:

y=3

Step-by-step explanation:

y + 3 = - y + 9

y + y = 9 - 3

2y = 6

y = 6/2

y =3

8 0
3 years ago
Helppppppp!! Asappp!!!
neonofarm [45]

Answer:

13

Step-by-step explanation:

It would be 13 because you would square the 5 and 12 to get 25 + 144 which equals 169. Then you would take the square root of 169 which is 13. Hope this helps! :)

3 0
2 years ago
Benji hiked 3 miles in 2.5 hours.<br> Find the unit rate
Drupady [299]

Answer:

1.2 miles per hour

Step-by-step explanation:

I did this a long time time ago but I believe I am correct.

Hope this helps!

3 0
2 years ago
4. Is rap music more popular among young Indians than among young Asians? A sample survey compared 634 randomly chosen Indians a
bulgar [2K]

Answer:

H0 is accepted

there is no difference between the proportions of Indian and Asian young people who listen to rap music every day.

Step-by-step explanation:

Given  a sample survey compared 634 randomly chosen Indians aged 15 to 25 with 567 randomly selected Asians in the same age group.

p_{1} = \frac{368}{634} =0.580

It found that 368 of the Indians and 130 Asians listened to rap music every day.

p_{2} = \frac{130}{567} =0.229

Null hypothesis H0: there is no difference between the proportions of Indian and Asian young people who listen to rap every day.

p_{1} = p_{2}

Alternative hypothesis:- p_{1} \neq  p_{2}

Level of significance α = 0.05

The test of statistic

z = \frac{p_{1} -  p_{2}}{\sqrt{pq(\frac{1}{n_{1} }+\frac{1}{n_{2} })  } } }

where p = \frac{n_{1}p_{1} + n_{1}p_{2}}{n_{1}+n_{2}} = \frac{634(0.580)+567(0.229)}{634+567}

       p = 0.414

and q = 1-p = 1- 0.414 =0.586

Z = \frac{0.580-0.229}{\sqrt{0.414(0.586)(\frac{1}{634} +\frac{1}{567} } } }

on calculation , we get

z = 0.300 ><1.96 at 95 % level of significance

H0 is accepted

there is no difference between the proportions of Indian and Asian young people who listen to rap every day.

3 0
3 years ago
Y=-3/4(4/1)+1 i dont know how to solve it but I know it
olga nikolaevna [1]

Answer:

Slope: 0

Y-Intercept: −2



5 0
2 years ago
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