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Yakvenalex [24]
3 years ago
12

Please help me on this!!

Mathematics
2 answers:
Solnce55 [7]3 years ago
8 0

Step-by-step explanation:

a) Hong is not a member of i. music and Dance

b) 2 students which is Eric and Omar

c). Mai , Hong,Ryan and lena

Alex17521 [72]3 years ago
5 0

Answer:

(a). Music and dance.

(b). Three students.

(c). Hong, Ryan, Lena and Mai

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19) Suppose that there are 55 Democrats and 45 Republicans in the US Senate. A committee of seven senators is to be formed by se
andre [41]

Answer:

Probability = 0.12676992

Step-by-step explanation:

The probability of selecting committee of seven composed of all Democrats.

Total number = 45+55= 100

Number of Democrats = 55

Number of committee = 7

Probability= (55C7)/(100/7)

Where C represent combination sign

Probability = (202927725/1.60075608*10^10)

Probability = 0.12676992

7 0
3 years ago
The correlation coefficient between two quantitative variables is approximately 0.6. What does the value of this correlation coe
murzikaleks [220]

Answer:

The model does not fits the data well.      

Step-by-step explanation:

Correlation:

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.

R-square, R^2

  • The quantity R-squared is an indicator of the predictive power of a model.
  • It explains the variation in the dependent variable due to independent variable.
  • It shows how well the model fits the data.
  • R-squared is also known as the  coefficient of determination.

R^2 = \text{(Correlation coefficient)}^2= (0.6)^2 = 0.36 = 36\%

Therefore, only 36% of the variations in the dependent variable is explained by the independent variable in the model which means more than 50% of variation cannot still be explained in the dependent variable.

Hence, the model does not fits the data well.

8 0
4 years ago
Which one doesn't belong why?
Gelneren [198K]

Answer:

C

Step-by-step explanation:

Based on the other answers. C is the odd one out.

6 0
3 years ago
For every left handed person, there are about 4 right-handed people. If there are 30 students in a class, predict the number of
Snezhnost [94]

Answer:

24

Step-by-step explanation:

30/5=6

1•6=6 Left handed

4•6=24 Right handed

4 0
3 years ago
Read 2 more answers
What is 31.75 times 1000
dmitriy555 [2]

Answer:

31750

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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