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Marrrta [24]
2 years ago
9

Which is an example of an operation

Mathematics
1 answer:
Leni [432]2 years ago
7 0
Exponents
Multiplication
Division
Addition
Subtraction

Please consider marking this answer as Brainliest to help me advance.
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A researcher drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 209 times. The observed freque
ddd [48]

Answer:

Step-by-step explanation:

Given that the observed frequencies for the outcomes as follows:

To check this we can use chi square goodness of fit test.

H_0: equally likely\\H_a: not equally likely

(Two tailed test at 5% significance level)

Assuming equally likely expected observations are found out and then chi square is calculated as (0-E)^2/E

Df = 6-1 =5

Outcome Frequency Expected frequency (Obs-exp)^2/Exp

   

1 36 34.83333333 0.03907496

2 30 34.83333333 0.670653907

3 41 34.83333333 1.091706539

4 40 34.83333333 0.766347687

5 23 34.83333333 4.019936204

6 39 34.83333333 0.498405104

   

209 209          7.086124402

p value =0.214

Since p >alpha, we accept null hypothesis

It appears that the  loaded die does not behave differently than a fair​ die at 5% level of significance

5 0
3 years ago
Answer will get brainliest
Artemon [7]

1. outcome

2. probability

3. equally likely

4. likely

5. certain

6. unlikely

7. impossible

Hope this helps! If you have any more questions or need further clarification then please comment down below or message me! Good luck!

3 0
3 years ago
Find m(angle) ABC<br><br>21 <br><br>132<br><br>48<br><br>19
Brut [27]

I don't like these algebra problems which pretend to be geometry.

These are supplementary angles adding to 180 degrees; geometry done.

7x - 1  + 3x - 9 = 180

10 x = 190

x = 19

ABC=3x - 9 = 3(19) - 9 = 48

Answer 48°


5 0
3 years ago
Read 2 more answers
Ryan counts 505,515, 525, 535, 545, 555. By which number does Ryan skip count?​
raketka [301]
The Anwser would se 7,363
5 0
2 years ago
Type the formula for the number of combinations of n things taken r at a time.<br><br> C(n, r) =
SOVA2 [1]
Formula: <span><span>
</span> <span>   <span>Note: , where nPr is the formula for permutations of n objects taken r at a time.</span> </span> <span> Example: <span>How many different committees of 4 students can be chosen from a group of 15? </span> </span> <span> Answer: <span>There are possible combinations of 4 students from a set of 15.</span> </span> <span>   <span> There are 1365 different committees.</span></span></span>
4 0
3 years ago
Read 2 more answers
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