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Aneli [31]
2 years ago
5

The mean of four numbers is 43. What are those four numbers?​

Mathematics
1 answer:
Andrej [43]2 years ago
7 0

Answer:

42,43,43,44

Step-by-step explanation:

If there are four numbers in a list then the middle 2 numbers should be added up and divided up to give the mean. If we are given the mean we can now work backwards to give us:

\frac{x+y}{2} (where x and y are the 2 middle numbers)

We can also see that x and y must be equal as the mean is an integer.

So:

43=\frac{2x}{2}

So x=43 and that is the middle 2 numbers.

I don't exactly know how to explain how i got the other 2 numbers.

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stealth61 [152]
The answer to the question is a

6 0
2 years ago
Which of the following p values will lead us to reject the null hypothesis if the level of significance equals .05?
V125BC [204]

Answer:

So then our significance level is \alpha=0.05 and we need to remember these two conditions:

1) If the p value p_v we have enough evidence to reject the null hypothesis at the significance level given

2) If the p value p_v \geq \alpha we have enough evidence to FAIL reject the null hypothesis at the significance level given

And baed on the options we see that the only possibility would be:

d. 0.015

Step-by-step explanation:

We want to know for which value we would REJECT the null hypothesis.

So then our significance level is \alpha=0.05 and we need to remember these two conditions:

1) If the p value p_v we have enough evidence to reject the null hypothesis at the significance level given

2) If the p value p_v \geq \alpha we have enough evidence to FAIL reject the null hypothesis at the significance level given

And baed on the options we see that the only possibility would be:

d. 0.015

7 0
3 years ago
Which comparison statement is true? A. 7.24 &lt; 7.240 B. 7.24 &gt; 7.240 C. 7.24 = 7.240
KIM [24]
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8 0
3 years ago
Read 2 more answers
2z-18-4z=-8 what is the value of z
zmey [24]

The z is 5

−2⋅<em>z</em>=−8+18

-

2

⋅

z

=

-

8

+

18

Simplify :

−2⋅<em>z</em>=10

-

2

⋅

z

=

10

Dividing by the variable coefficient :

<em>z</em>=−

10

2

z

=

-

10

2

Simplify :

<em>z</em>=−5

z

=

-

5

The solution of equation

2⋅<em>z</em>−18−4⋅<em>z</em>=−8

2

⋅

z

-

18

-

4

⋅

z

=

-

8

is

[−5]

7 0
2 years ago
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