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Rainbow [258]
4 years ago
14

The following is a list of 5 measurements. 19,30,20,10,17 Suppose that these 5 measurements are respectively labeled.

Mathematics
1 answer:
Hunter-Best [27]4 years ago
5 0

Answer:

For example, suppose we weigh five children. ... 5. ∑ i=1 xi. = x1 + x2 + x3 + x4 + x5. = 10 + 12 + 14 + 8 + 11. = 55. ... We also use sigma notation in the following way: 4 ... j2 = 12 + 22 + 32 + 42 = 30.

Missing: 17 ‎| Must include: 17Summary measures for this data set are ... 17 18. 19 20. Observedresult. 0. 1. 0. 1. 1. 0. 1. 0. 1. 1. Total so far. 4. 5. 5. 6 ... 5. 10. 15. 20. 25. 30. 35. 40 . Toss. Figure S2.1 Proportion P, 40 tosses of a coin.

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Which of the following describes a positive correlation?
insens350 [35]

Answer:

First Choice: As the number of hours spent on homework increases, the tests scores increase.

Step-by-step explanation:

The definition of a positive correlation  is a relationship between two given variables, in which both variables are moving in the same direction. This can mean when one variable increases and the other variable increases, too, or one variable decreases and the other decreases as well.

The first choice is a positive correlation because both variables are changing (increasing) in the same direction. As you spend more time on homework, you're likely to get a higher test score.

The second choice cannot be a positive correlation because only one variable is having some kind of change (increasing). The doctor visits amount remains the same, so we can call this a zero-correlation relationship because the number of apples eaten yearly doesn't affect the amount of doctor visits. An apple a day keeps the doctor a way is just a proverb, not to be taken literally.

The third choice cannot be a positive correlation because the two variables are going different directions. Even though the number of times going to bed early is increasing, the number of times waking up late decreases, which is not moving in the same direction as the other variable.

The fourth choice cannot be a positive correlation because, similarly to the third choice, the two variables are going different directions. One variable is increasing, which is the amount of practice time. Meanwhile, the other variable is decreasing (going in the opposite direction), which is the number of games lost in a season.

6 0
3 years ago
Need helpppppppppppppppppp
borishaifa [10]

Answer:

46.3

Step-by-step explanation:

Mean is the average of all values. You add all the values on the table and divide them by the amount of values (here there are 10 land animals so you would divide by 10).

\frac{70+61+50+48+45+43+40+39+35+32}{10} =\frac{463}{10} = 46.3

5 0
3 years ago
Two linear are parallel if and only if their slopes are
grin007 [14]
Their slopes must be the same, but with different y-intercepts.

Here is an example: 2x + 1 and 2x + 4 are parallel lines.
8 0
3 years ago
Find the mode of the set of data. 6, 6, 6, 8, 10, 10, *
Ira Lisetskai [31]

Answer:

6

Step-by-step explanation:

The mode is the number that appears most in the data set.

So your answer would be 6 because it appears 3 times.

7 0
3 years ago
Read 2 more answers
What is 9/11 +2/3 and show the work
erica [24]

Answer:

9/11 = 27/33

2/3 = 22/33

27/33 + 22/33 = 49/33

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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