The distance formula is d=√(x2-x1)² + (y2-y1)²
So... d =8.06226
Hope this helps
Answer:
B. 0.4
Step-by-step explanation:
Use the definition of the probability
You have to find the probability that a randomly selected reference book is hard cover. Hence, from the table
- Number of all possible outcomes = Number of Reference books = 25
- Number of all favorable outcomes = Number of Hardcover Reference books = 10
So, the probability is
Try this option:
- true;
- not true;
- true;
- true;
- not true.
Answer:
2; -2
Step-by-step explanation:
|7-9| = |-2| = 2
|7|-9= 7 - 9 = -2
Answer:
Step-by-step explanation:
For testing of significance of correlation coefficient denoted by r, we create hypotheses in three ways
They are one tailed, two tailed. One tailed can be stated as right tailed and also left tailed.
The null hypothesis would normally be as r=0
Verbally we can say this there is no association between the dependent and independent variable (linear)
Against this alternate hypothesis is created as
either r not equal to 0
or r>0 or r<0
If r not equal to 0, we say two tailed hypothesis test
If r>0 is alternate hypothesis, it is right tailed test
If r<0 is alternate hypothesis, then it is left tailed test.
