Answer:
each brother received 1,015 marbles cus 2,030 divided by 2 is 1,015.
Answer: C. ±0.632.
Step-by-step explanation:
We have given,
Sample size : n= 10
Significance level :
Test to check determine whether there is sufficient evidence to support a
claim of a linear correlation between two variables is a two tailed test.
Degree of freedom(df) = n- 2=8
Now , by the correlation coefficient(r) table ,
The critical r value corresponding to df = 8 and Significance level = 0.025 (0.05/2) is ±0.632.
Hence, the correct option is C. ±0.632.
Answer:
85
Step-by-step explanation:
Write the numbers in order
66, 72, 74, 80, 83, 87, 91, 95, 98, 99
Find the middle number
83 and 87 are in the middle, so find the mean of them. 83+87= 170
170/2 = 85.
Answer:
72 feet is the answer. The shadow of the 63 ft tower.
So than this is a triangle so we know that the sum of measure of angles of a triangle is equal 180 degrees
- in this case m<O = 180 -(137+22) = 180 -159 = 21
m<O = 21 degrees