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erastovalidia [21]
2 years ago
5

the following shows the correlation between the length of s persons handspan & how many Jolly Ranchers they can pick up w on

e hand. which of the following correlation coefficients is closest to the correlation coefficient of the linear fit of the data shown below, to the nearest hundredth?

Mathematics
2 answers:
irga5000 [103]2 years ago
6 0
The answer to the algebra question is D
Katen [24]2 years ago
4 0

Answer:

The following correlation coefficient which is closest to the correlation coefficient of the linear fit of the data shown below, to the nearest hundredth is:

0.77

Step-by-step explanation:

We know that:

  • from the scatter plot the correlation coefficient(r) is zero when there is no relationship between the two variable but here as we know that the relationship is linear hence correlation coefficient can't be zero.

             Hence, r=0 is incorrect.

  • Also as the relation is a positive linear correlation hence r can't be negative.

            Hence r=-0.95 is incorrect.

  • Also, if we draw a line of best fit then all the points will not lie on the line of best fit.

            Hence r=1 is incorrect.

Hence, the correct answer is:

r=0.77

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Andrew and Ryan spend a total of $44 at a state fair. There is an entrance fee of x dollars per person, and each ride costs $3.5
olya-2409 [2.1K]
N represent the number of rides each of them took

entrance fee for both of them = 2x
Total cost of rides = 2n x 3.50 = 7n

The total cost is 44
2x + 7n = 44 (Answer E)

2x + 7n = 44
2(x + 3.5n) = 44 (Answer C)


6 0
3 years ago
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From your home, the route to the store that passes the beach is 2 miles shorter than the route to the store that passes the park
densk [106]

Then, distance of route passes the beach = x

Let the distance of route that passes the park = x+2

So, their sum would be: x+x+2 = 2x+2

So, option C Is your answer.......


8 0
2 years ago
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Question 6: An experiment consists of throwing two six-sided dice and observing the number of spots on the upper faces. Determin
yaroslaw [1]

Answer:

(a) 0.25

(b) 0.944

(c) 0.444

(d) 0.167

Step-by-step explanation:

There are six possible outcomes for each die, which means that the number of possible outcomes is:

n=6*6 = 36

(a) In order for each die to show four or more spots they will both have to land on a four, five or six. The probability of this happening is:

P(A) = \frac{3*3}{36}=0.25

(b) There are only two possible outcomes for which the sum is three (1 and 2, or 2 and 1). The probability of the sum NOT being three is:

P(B) = 1-\frac{2}{36}=0.944

(c) If neither a one or a six must appear, then there are 4 possible outcomes for each die, the probability is:

P(C) = \frac{4*4}{36}=0.444

(d) For each one of the six possible numbers on the first die, there is only one on the second die for which the sum of the spots is 7, totaling six possible ways to sum 7:

P(D) = \frac{6}{36}=0.167

7 0
2 years ago
Two classes have a total of 50 students. One class has 6 more students than the other. How may students are in the larger class
givi [52]
Subtract 6 from 50:
50-6 = 44
Divide 44 by 2:
44/2 = 22

add 6:

22+6 = 28

There is 22 in the smaller class and 28 in the larger class.
5 0
2 years ago
Determine whether the sets have a subset relationship. R = {right triangles} O = {obtuse triangles} a) R and O are disjoint. b)
DerKrebs [107]

Answer:

f

Step-by-step explanation:

A right angled triangle has one angle equal to 90°

an obtuse angle triangle has one angle greater tan 90°

a) An o and right-angled triangle btuse angled triangle can have one angle equal.

b) R and O are not equivalent by definition

c)  subset of R and Oare not all triangles as R and O are categories of all triangles. R and O are subset of all triangles

d) Acute triangles have all acute angles. So subset of R and O can't be all acute traingles

e) All triangles with two acute angles are may or may not have third angle as obtuse angle or 90° angle

f) none of the above

5 0
2 years ago
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