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SOVA2 [1]
3 years ago
13

I don’t understand. online school is hard

Mathematics
2 answers:
VladimirAG [237]3 years ago
7 0
It’s hard my dude but don’t give up
Minchanka [31]3 years ago
5 0
I think you got to multiply the numbers hopefully I helped
You might be interested in
A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample
suter [353]

Answer:

The expected frequency for the cell E2,2 is = 33

Step-by-step explanation:

The given data is

Gender               | 0-30| 30-60| 60-90| 90+       Totals

Male                    | 23    |    35   |   76    |  46        180

<u> Female               |   31   |    42   |   46    |  16         135    </u>

<u>Totals                    54         77        122    62          315  </u>

<u />

The expected frequency for the cell E2,2 is :

Expected for the (30-60 box for females)   =  Total of (30-6)/ (total )* females

                                                                      = ( 77/315)135= 33

Here p= 77/315 and n= 135

therefor X= pn = 33

χ²=  (33-42)²/33= 2.455  ( for the single value of E2,2=33)

Expected for the (30-60 box for males)   =  Total of (30-6)/ (total )* males

                                                                      = ( 77/315)180= 44

χ²=  (44-42)²/44= 0.09

The critical region is  χ² (0.05) 3 ≥  χ²= 11.34

Let the null and alternate hypothesis be

H0:the number of minutes spent online per day is not related to gender

against

Ha: the number of minutes spent online per day is related to gender

The single value of χ² for E2,2 = 2.45 is less than the critical value of 11.34.  

6 0
2 years ago
6=x/5 solve the question <br> X=
Sliva [168]

Answer:

x=30

Step-by-step explanation:

6 x 5 = 30

30/5 = 6

8 0
3 years ago
Which polynomial is factored completely?
n200080 [17]
G^5 -g = g(g^4 -1)=g(g^2 -1)(g^2 +1) = g(g-1)(g+1)(g^2 +1)

24g^2 -6g^4 = 6g^2(4 -g^2) = 6g^2(2 -g)(2 +g)
6 0
3 years ago
Read 2 more answers
A couple want to buy a house that costs $542 000. They pay a 20% deposit and borrow the rest of
Tanya [424]

Answer:

$146.00 a month I hope that's what you're look for

Step-by-step explanation:

go to Khan academy they give free math explainations

6 0
1 year ago
Students in a science class are divided into 6 equal groups with at least 4 students in each group for a project. write and solv
S_A_V [24]

There are a total of 6 groups.

And each group contains at least 4 students.

So the minimum number of students is:

minimum = 6 * 4 = 24 students

 

Let us say that x represents the number of students, hence:

<span>x ≥ 24</span>

5 0
3 years ago
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