1. 7x + 9 = 48
7x = 58 - 9
7x = 49
X = 7
It’s C. Since that’s the middle based on the diagram
Answer:
A
Step-by-step explanation:
i took the test
Answer:
Option A
Step-by-step explanation:
Given that in a study of the relationship between geographical mobility (number of times a person has changed residences) and number of friends, Pearson's r^2 is reported as .40.
r square, being the coefficient of determination explains the variablity of one variable due to the variability of the other. Here Mobility explains 40% variation in the number of friends is right answer.
Option B is wrong because r = ±6324, so cannot say positive or negative.
Similarly option c is wrong because we are unsure whether negative correlation. Option d is wrong since 16% is not right .
Answer:0.0757
Step-by-step explanation:
10^4 equals to 10*10*10*10=10000
now 757/10000=0.0757
