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rjkz [21]
3 years ago
10

Solve the problem. For large numbers of degrees of​ freedom, the critical chi χ squared 2 values can be approximated using the f

ormula chi χ squared 2 equals = one half (x plus StartRoot 2 x minus 1 EndRoot )squared 1 2 z+ 2k−12​, where k is the number of degrees of freedom and z is the critical value. To find the lower critical​ value, the negative ​z-value is​ used, to find the upper critical​ value, the positive ​z-value is used. Use this approximation to estimate the critical value of chi χ squared 2 in a​ right-tailed hypothesis test with n equals =143 and alpha α equals =0.01.
Mathematics
1 answer:
kykrilka [37]3 years ago
7 0

Answer:

0.01  =0.0001

Step-by-step explanation:

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HELP ME RN PLZ
elena-14-01-66 [18.8K]

Answer:

200

Step-by-step explanation:

The reason why this answer is 200 is because it gave us a clue that 30 students said that pie was their favorite desert, what is half of 30? 15 so therefore, the pattern is half of each.

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3 years ago
What is the value of x here??<br><br>​
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3 0
3 years ago
Read 2 more answers
Can someone please help me?? :( I will give brainliest
leva [86]

Step-by-step explanation:

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one point is for all 4 lines the origin, so the coordinate changes are the point coordinates themselves, and we only need to calculate y/x and see, which ones are equal.

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6 0
2 years ago
Find the 7th term of the expansion of (3c + 2d)^9.
defon

Answer:

c

Step-by-step explanation:

Using Pascal's triangle, the expansion, although EXTREMELY lengthy, will help you find the 7th term.  I am going to type out the expansion only up til the 7th term (although there are actually 10 terms because we are raised to the power of 9).  If you would like to learn how to use Pascal's Triangle for binomial expansion, you will need to visit a good website that explains it because it's just too difficult to do it via this website.

The expasion is as follows (up to the 7th term):

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That last term is the 7th term.  You find out its value by multiplying all the numbers together and adding on the c^3d^6.  Again those come from Pascal's triangle, and it's one of the coolest math things ever.  I encourage you to take the time to explore how it works.

5 0
3 years ago
Basic Stat Psy
luda_lava [24]

Answer with explanation:

The Meaning of the word Random is , selecting instantaneously from a group of Population for the study.

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