If the correlation coefficient is 0, then there isn't a linear relationship between x and y. Another possible relationship (such as an exponential or quadratic) one could be possible, but it depends on the scatter plot given.
Answer:
Step-by-step explanation:
We know that half of the students has two pets. The rest of the students make up the other half. So, we have 3 students + 2 students + 8 students = 13 students that make half of the sample population
That means total number of students being surveyed is 13+13=26 students
Then we work out the probability
P(One pet) = 8/26 = 4/13
P(Two pets) = 1/2
P(Three pets) = 3/26
P( Four pets) = 2/26 = 1/13
The probability distribution is shown in the table below. Let be the number of pets and is the probability of owning the number of pets
A = 180 - 36 = 144
b = 360 - (113 + 36 + 144)
b = 60 -293
b = 67
By using fractions, the correct options are b and d
Number of strips =
=
What are fractions?
Suppose there is a collection and a part of collection has to be taken. The part which is taken is called fraction. In other words, part of a whole is called fraction.
The upper part of the fraction is called numerator and the lower part of the fraction is called denominator
Division of fraction is used here
Total length of wood = yards = yards
Length of wood needed for each strip = yards
Number of strips she will have =
=
Option b and d is correct
To learn more about fraction, refer to the link-
brainly.com/question/17220365
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Complete Question
The complete question has been attached here
Answer:
Step-by-step explanation:
In all 30-60-90 triangles, the side lengths are in the ratio , where is the side opposite to the 30 degree angle and is the hypotenuse of the triangle. Since the side opposite to the 30 degree angle is marked as 3, the value of must be .
Alternatively, we can use basic trig. for a right triangle to solve. In any right triangle, the tangent of an angle is equal to its opposite side divided by its adjacent side. Thus, we have: