Answer:
Q = ( -3 , 6 ) .... R = ( -1 , 8 ) ...... S = ( -5 , 7 )
Step-by-step explanation:
Q = ( 1 + ( -4 ) , 4 + 2 ) = ( -3 , 6 )
R = ( 3 + ( -4 ) , 6 + 2 ) = ( -1 , 8 )
S = ( -1 + ( -4 ) , 5 + 2 ) = ( -5 , 7 )
Answer:
Step-by-step explanation:
given that the Paralyzed Veterans of America recently sent letters to a random sample of 100,000 potential donors and received 4781 donations

(left tailed test)
Sample proportion = 
p difference = -0.00219
Assuming H0 to be true, std error of proportion
=
Test statistic Z = p diff/std error = -1.38641
p value = 0.0828
since p value >0.05 our significance level
we accept null hypothesis
There is no statistical evidence of a real drop in the contribution rate.
Answer:
238
Step-by-step explanation:
let the number of marbles Sam has be x, then
Jim has x + 92 ← 92 more than Sam
After swap of 18 marbles
Sam has x - 18 and sam has x + 92 + 18 = x + 110
Jim now has twice as many as Sam, that is
x + 110 = 2(x - 18)
x + 110 = 2x - 36 ( subtract x from both sides )
110 = x - 36 ( add 36 to both sides )
146 = x
At first Jim had 146 + 92 = 238 marbles
1 + 2 = 3
Hope this helps you! Happy Thanksgiving!